can someone enlighten me what prompted those threats?

Signal has it’s share of problems. But those look to be technical problems, not intentional design malice. So I’ll stick with glitchy Signal until something better rolls around.

funny thing is: “Eternity” looks like it shows totals for my upvotes on posts/comments but not showing what those are

thanks for the tech details. It sucks that there’s no endpoint for upvotes (yet). I find favorites/saved and upvoted to be distinctly different at least the way I use it. Upvotes communicate to me (and others) that content is of value or that I agree with it. However Saved/Favorite may mean that I disagree with content but I’d like to keep reference for future times. That latter is a private info too so nobody benefits from me “saving” that content other than myself.

TLDR; I’d have to get used to hitting upvote and “save” buttons on content of interest and learn to filter through my “saved” stuff while devs are comming up with endpoints for upvotes.