It’s almost doublethink, people celebrating how the Fediverse is an open protocol for sharing public discussion and then going surprised-Pikachu at the notion that public discussion might be viewed by someone the don’t want to view it.
If you don’t mean for something to be public, don’t post it on a public forum.
The Fediverse seems a lot “bubblier” than Reddit, with people quicker to hit the downvote button for views that intrude. I’ve lost a lot of drive to engage here, I find myself often dropping a comment into a discussion and then never looking back at it. Unfortunate, but I suppose not too surprising when communities are smaller.