@XenonKaguno I'm glad to hear that you're having a good experience on burggit!
According to their published rules, it seems that there is no rule against hate speech. Instead, users are expected to block and filter against things like that.
I haven't used burggit myself, so I can't speak from experience. But I've heard from multiple people (including aethy members) that there are some pretty unpleasant posters in burggit and that their hate speech isn't moderated against.
I believe the blorbo mod team would be willing to consider re-federating if the burggit team committed to moderating against hate speech, and seemed to be doing so consistently and effectively.
Edited to add: we do federate with plenty of instances that allow content that isn't allowed on blorbo. But we don't compromise regarding hate speech.