John Stewart

John Stewart

Mastodon @johnstewart@mathstodon.xyz
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Make a deal with John Stewart

🔒 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→

Every booking is a normal escrow-protected deal.

Followers
7
Account age
1 yrs

📊 Activity & format

Follower / following
0.2×
Follows 44 back. A more reciprocal / networked account.

🐘 Community & instance

Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Jul 2025
An established account with real history on the platform.

💡 Facts

🗓️Joined Mastodon in 2025 — 1 year ago.

🛡️ Audience credibility

52/100 Fair
  • Est. 77% real, active audience · Medium fake-follower risk.
  • Limited engagement data — score uses the signals available.
Est. authentic audience
77%
Fake-follower risk
Medium
Data confidence
Low

Low confidence — few signals are public for this listing, so treat it as a rough screen. Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Focused on functional/logic programming, type theory, computer science, programming language theory, and software architecture. Computer scientist building the Arrow programming language; modal, nominal, non-deterministic dependent mixed intrinsic/extrinsic type theory with effects, no phase distinction, and self-hosted syntax. Typeface snob (and designer).

🔀 Audience overlap

Estimated

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

Hannah_Rama Hannah_Rama 15% Nochrisis Nochrisis 14% floetinho floetinho 13% Helmut Martin-Jung Helmut Martin-Jung 12% ひいろ ひいろ 10% noooaaaiiin noooaaaiiin 10%

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