You are right. I don't mind the upvotes being public, I do mind the deletion thing (although it's an inherent flaw of federation, hard to get around it) but both are points against it having good privacy.

I guess what I meant is that the platform makes no attempt at linking your online persona to anything else. It doesn't even collect IP adresses and has very poor logging - btw this is actually a liability with the ongoing CSAM issue.