Fair moderation. The biggest problem with the largest instances is that they are heavily skewed towards communist ideals and censorship, and mods will ban you for holding (locally) controversal opinions despite not breaking any rules. And sometimes the rules are too arbitrary and get used as a scapegoat to ban you for your opinion.
Programming.dev has been a very good example of how moderation should be done, but it is for programmers, thus may not be appealing to the typical user, and they end up on lemmy.ml instead and get banned because the mod was in a bad mood and didn’t like your opinion.
Fair point. I said the biggest, but as you said, lemmy has been outgrowing the original instances. lemmy.ml hosting so many major communities is still a problem, but if that is slowly changing, I see a good future in Lemmy. OP seems decent so let’s hope it grows into a fine instance.