Yunohost installs a whole OS - Debian 11 - so you’d be essentially be flattening the drive.
That was a bit halfhearted. You didn’t use the phrase ‘hive mind’ or anything.
OK, so you can login anonymously. Great.
The real question is; why would you want to, given that the dead bird site is a cesspool of extreme rightwing awfulness? What are you hoping to learn or take from being on there?
Shit. Missed that, sorry.
Maybe give Seafile a try?
Open source, you can selfhost, has clients for Linux/Win/Mac and Android/iOS and best of all - encryption that actually works.
.world hasn’t defederated from either of these two instances. They’ve blocked .world users from accessing those 3 communities from .world. You, as a .world user can still access any community across those 2 instances, aside from the 3 mentioned. Any users on those instances can still access .world communities.