The problem if you deactivate federation is, that people think, they can post with their Mastodon account, but it fails.
But another problem is, that if you deactivate federation, all the federated content stays in the “all feed” and people might still post there. And federated communities show up to after deactivation. This is sloppy craftsmanship, again, and I could cry, if I see stuff like this, or did I just missed how to get rid of federated content after deactivating federation?
I tried to install lemmyBB, but the README is pretty broken and I couldn’t even find someone, who has this front-end running. I already opened an issue on github and it looks like lemmyBB only works with an older version of lemmy :/
Maybe I just copy my first posts, which got ghost data federated (from older installations), so the posts get a new id and people are able to post comments again (which can be seen by me). So at least one problem will be solved.