93 for 1/0.01075
Lemmy.zip instance admin
93 for 1/0.01075
1024 historians assuming they all pick different combinations at random. Probability of randomly guessing at least 9 of 10 goes up to 1.075% or 93 historians (on average to get one person with 9/10 predictions right) or like the other commenter mentioned 1024-11= 1013 to guarantee a 9/10 but that’s a little overkill.
Telegram channels are your best bet. Something like STL Forest or STLworld should have what you need
It’s available to admins at least and I believe Kbin has it on by default for everyone so it should be publically available if someone wanted to find it. That said I don’t think anyone is interested in that level of micromanagement unless its something like mass downvote accounts.