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Followers
273
Account age
1 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🧰 Free analysis for Koos
📊 Post engagement
6
Avg engagement / post
2.2%
Engagement vs followers
Feb 2025
On Mastodon since
🔥 Top post: OpenAI's hack of Hugging Face is a nice test to see which media · 16 likes + reposts
📊 Activity & format
Posting cadence
3.3 / week
Posts several times a week.
Content mix
Mostly text
Recent: 10 text · 2 image · 0 video.
Follower / following
1.1×
Follows 255 back. A more reciprocal / networked account.
Recent posts
View on Mastodon ↗
🔥 Top post
OpenAI's hack of Hugging Face is a nice test to see which media outlets simply regurgitate OpenAI's PR articles (or copy the exaggerated interpretations!), and which ones actually think for themselves and do some digging.
I already thought Arq was taking a long time to back up my system to an external drive, but after a week I found the backup included itself ♾️
I've lived for over a decade in this country and still regularly think "Why is this document so badly formatted and hard to read? Right, I live in Germany."
So excited about the #euro banknote designs, that I made a blog post out of my previous toots: https://www.kooslooijesteijn.net/blog/new-euro-banknotes-voting
If anything, I'm glad we're not just getting the urine marks of some old dude with a fragile ego on everything 🇺🇸
The current euro design is the first, from the time everyone had to get adjusted to a the currency itself. I think they bet on that a conservative, boring design would help adoption.
But for someone used to the Dutch bright and bold gulde…
There's a sort of voting contest for the new design of euro banknotes. Normally I wouldn't really pay attention to that kind of thing because Boaty McBoatface/the most common boring thing is picked as most popular.
But all the concepts loo…
Since the very first version, our website has fluid type; the font-size is adjusted to the viewport width.
Very first comment from user testing our website today: "ugh that's a big title, that doesn't look mobile first!"
Het hacken van Hugging Face door OpenAI is een leuke test om te zien welke media gewoon de PR blogpost van OpenAI overnemen, en wie er zelf nog een beetje nadenkt en navraagt:
RE: https://beige.party/@maxleibman/116884326841775088
who it’s me your own guy
It's like he's on a mission: meddling in trivial affairs to show America he's the man in charge, while making America look like a bunch of sore losers to the rest of the world.
Also, I believe projects, tasks and sub tasks should all have the same type and that the relationships between them defines their level. Too often we have tasks that turn out to be projects and vice versa, but when we move them between the…
Het hacken van Hugging Face door OpenAI is een leuke test om te zien welke media gewoon de PR blogpost van OpenAI overnemen, en wie er zelf nog een beetje nadenkt en navraagt:
RE: https://beige.party/@maxleibman/116884326841775088
who it’s me your own guy
It's like he's on a mission: meddling in trivial affairs to show America he's the man in charge, while making America look like a bunch of sore losers to the rest of the world.
Also, I believe projects, tasks and sub tasks should all have the same type and that the relationships between them defines their level. Too often we have tasks that turn out to be projects and vice versa, but when we move them between the…
🐘 Community & instance
Home server
mastodon.green
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Feb 2025
An established account with real history on the platform.
💡 Facts
🗓️Joined Mastodon in 2025 — 1 year ago.
👁️Averages 6 views per post.
📤Posts about 3.3× per week.
🕵️ Fake follower check
Estimated75/100
Good
Credibility score
92%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 92% real, active audience · Low fake-follower risk.
- Strong engagement (~2.2% of followers engage each post) — an active, real audience.
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
I design at ForTomorrow. I’m an immigrant in Berlin, geriatric millennial, edge case, papa.
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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