In some way, I do enjoy the barrier of entry to issue trackers, so long as other people who have complaints actually get their complaints properly added to the tracker by someone able to. Using a microblogging platform to add issue reports feels like it would become low-effort and spammy.

Federation between instances sounds useful, so that I don’t need accounts on multiple Gitea self-host instances (I’m already on two) and to give exposure to more projects. A project gets the benefit of ultimate control over their code base self-hosting, without the isolation of self-hosting.