@Tipa The only unwritten rule is: do no harm to others. Then, of course, there are extremists here too, as in all contexts. People who are not used to using alt-text should be guided, not attacked, and unfortunately, this sometimes happens in the Fediverse. In polarizing social platforms, there is a tendency towards aggressiveness and partisanship. Here, I see that many people seek positivity and constructiveness, acceptance, and participation.