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SF Critical Mass

SF Critical Mass✓

Mastodon @sfcriticalmass@sfba.social
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Make a deal with SF Critical Mass

🔒 Paid proposals held safely in escrow — released only when the work's approved.

📣Sponsored postOne disclosed post (toot) with your link and message. $12→ 🧵Sponsored threadA multi-post explainer or story — the fediverse rewards dept… $30→ 📦Product seeding / honest reviewSend me your product — I post a disclosed, honest take. Auth… $16→ 📌Pinned sponsored postA disclosed post pinned to the top of my profile for the mon… $36/mo→ 🔗Profile link (bio field)Your link in one of my profile metadata fields for the month… $18/mo→ 🔁Boost packageI boost (repost) your account's toots through the month — di… $24/mo→ 🏛️Instance / community sponsorshipSponsor the server I run — a sponsor line in the About/rules… $30/mo→ 🤝Mutual boost collabWe boost each other across instances — a value swap between … Swap→ 🎬UGC HireBranded content for your own channels & ads from $50→ 🎙️Podcast guest spotInvite SF Critical Mass onto your podcast (~45 min, remote) $26→

Every booking is a normal escrow-protected deal.

Followers
485
Account age
3 yrs
🧰 Free analysis for SF Critical Mass
🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

CARS OFF MARKET ST! MARKET ST IS FOR BUSES, BIKES, & PEOPLE! CRITICAL MASS THIS FRIDAY, MEET 5:30PM, EMBARCADERO PLAZA. Stop Trust Fund Lurie's privatization of Market St - first cutting bus service, and now unilaterally telling Uber/Lyft Black and Waymo they can fill up the street26 views CARS OFF MARKET ST! MARKET ST IS FOR BUSES, BIKES, & PEOPLE! CRITICAL MASS THIS FRIDAY, MEET 5:30PM, EMBARCADERO PLAZA. Stop Trust Fund Lurie's privatization of Market St - first cutting bus service, and now unilaterally telling Uber/Lyft Black and Waymo they can fill up the street In addition to the regular Critical Mass this Friday (Embarcadero Plaza, meet 6pm, roll 6:30), we are also supporting the Alex Pretti memorial/protest rides on Saturday. More info and links to the SF route here: https://sfcriticalmass.com/posts/2026-01-28-alex-pretti/ Saturday there are several protest rides for Alex Pretti: * East Bay - Meet 10am, roll 10:30 from Rockridge BART - www.instagram.co23 views In addition to the regular Critical Mass this Friday (Embarcadero Plaza, meet 6pm, roll 6:30), we are also supporting the Alex Pretti memorial/protest rides on Saturday. More info and links to the SF route here: https://sfcriticalmass.com/posts/2026-01-28-alex-pretti/ Saturday there are several protest rides for Alex Pretti: * East Bay - Meet 10am, roll 10:30 from Rockridge BART - www.instagram.co SF CRITICAL MASS is THIS FRIDAY, May 30th! Meet at Embarcadero Plaza at 6pm, roll at 6:3021 views SF CRITICAL MASS is THIS FRIDAY, May 30th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 SF CRITICAL MASS is THIS FRIDAY, Jan 31st, 2025! Meet at Embarcadero Plaza at 6pm, roll at 6:30!14 views SF CRITICAL MASS is THIS FRIDAY, Jan 31st, 2025! Meet at Embarcadero Plaza at 6pm, roll at 6:30!

📊 Post engagement

12
Avg engagement / post
2.5%
Engagement vs followers
Nov 2022
On Mastodon since

🔥 Top post: CARS OFF MARKET ST! MARKET ST IS FOR BUSES, BIKES, & PEOPLE! CRI · 26 likes + reposts

📊 Activity & format

Posting cadence
0.18 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly images
Recent: 0 text · 12 image · 0 video.
Follower / following
2.6×
Follows 188 back. A more reciprocal / networked account.

Recent posts

View on Mastodon ↗
🔥 Top post CARS OFF MARKET ST! MARKET ST IS FOR BUSES, BIKES, & PEOPLE! CRITICAL MASS THIS FRIDAY, MEET 5:30PM, EMBARCADERO PLAZA. Stop Trust Fund Lurie's privatization of Market St - first cutting bus service, and now unilaterally telling Uber/Lyft Black and Waymo they can fill up the str… ★ 26
SF CRITICAL MASS TOMORROW (FRIDAY) 3/27 Meet 6pm, roll 6:30 from Embarcadero Plaza ★ 10 SF CRITICAL MASS is THIS FRIDAY Meet 6pm, roll 6:30 from Embarcadero Plaza ★ 3 In addition to the regular Critical Mass this Friday (Embarcadero Plaza, meet 6pm, roll 6:30), we are also supporting the Alex Pretti memorial/protest rides on Saturday. More info and links to the SF route here: https://sfcriticalmass.com/… ★ 23 SF CRITICAL MASS TONIGHT! Meet 6pm, roll 6:30 from Embarcadero Plaza Photo from IG:neighborhoodist ★ 8 SF CRITICAL MASS is THIS FRIDAY, July 25th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 ★ 11 SF CRITICAL MASS is THIS FRIDAY, May 30th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 ★ 21 SF CRITICAL MASS is THIS FRIDAY, April 25th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 ★ 9 SF CRITICAL MASS is THIS FRIDAY, March 28th! (Tomorrow!) Meet at Embarcadero Plaza at 6pm, roll at 6:30 ★ 4 SF CRITICAL MASS is TONIGHT! Fri Feb 28th, 2025! Meet at Embarcadero Plaza at 6pm, roll at 6:30! ★ 3 SF CRITICAL MASS is THIS FRIDAY, Jan 31st, 2025! Meet at Embarcadero Plaza at 6pm, roll at 6:30! ★ 14 SF CRITICAL MASS is THIS FRIDAY, Dec 27th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 MERRY CHRISTMAS! HAPPY HANUKKAH! HAPPY NEW YEAR! ★ 14

🐘 Community & instance

Home server
sfba.social
A the SF Bay Area server — its members and audience skew toward that niche, so expect a community-aligned, engaged following.
✅ Link-verified
Verified link
Proved ownership of a website linked on their profile — Mastodon's green-check verification, a real identity signal rather than a paid badge.
On Mastodon since
Nov 2022
Joined in the Twitter-exodus wave of late 2022 — part of the migration that made Mastodon a real destination.

💡 Facts

🗓️Joined Mastodon in 2022 — 3 years ago.
👁️Averages 12 views per post.
📤Posts about 0.2× per week.

🕵️ Fake follower check

Estimated
89/100
Excellent Credibility score
99%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 99% real, active audience · Low fake-follower risk.
  • Strong engagement (~2.5% of followers engage each post) — an active, real audience.
  • Verified account.
  • Established account (3+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

LAST FRIDAY EVERY MONTH, Embarcadero Plaza, meet 5:30 pm roll 6:30. All accounts unofficial. PFP from sfcriticalmass org, CC BY-NC

📸 Gallery

SF CRITICAL MASS TOMORROW (FRIDAY) 3/27 Meet 6pm, roll 6:30 from Embarcadero Plaza SF CRITICAL MASS is THIS FRIDAY Meet 6pm, roll 6:30 from Embarcadero Plaza In addition to the regular Critical Mass this Friday (Embarcadero Plaza, meet 6pm, roll 6:30), we are also supporting the Alex Pretti memorial/protest rides on Saturday. More info and links to the SF route here: https://sfcriticalmass.com/posts/2026-01-28-alex-pretti/ Saturday there are several protest rides for Alex Pretti: * East Bay - Meet 10am, roll 10:30 from Rockridge BART - www.instagram.co SF CRITICAL MASS TONIGHT! Meet 6pm, roll 6:30 from Embarcadero Plaza Photo from IG:neighborhoodist CARS OFF MARKET ST! MARKET ST IS FOR BUSES, BIKES, & PEOPLE! CRITICAL MASS THIS FRIDAY, MEET 5:30PM, EMBARCADERO PLAZA. Stop Trust Fund Lurie's privatization of Market St - first cutting bus service, and now unilaterally telling Uber/Lyft Black and Waymo they can fill up the street SF CRITICAL MASS is THIS FRIDAY, July 25th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 SF CRITICAL MASS is THIS FRIDAY, May 30th! Meet at Embarcadero Plaza at 6pm, roll at 6:30 SF CRITICAL MASS is THIS FRIDAY, April 25th! Meet at Embarcadero Plaza at 6pm, roll at 6:30

🔀 Audience overlap

Estimated

Estimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.

Chris Bohn Chris Bohn 17% Pets Save the Day Pets Save the Day 17% Eva Eva 14% TeX Users Group TeX Users Group 12% Markus Peuhkuri Markus Peuhkuri 11% Thomas Tuegel Thomas Tuegel 10%

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