The alt social media are a good place to run away from algorithms and explicit mass manipulation from other big tech, be more free, independent, and spread ideas, but I also think that the fediverse is being filling with people with radical political ideologies, some kicked out of traditional social platforms for this same reason. I’m not saying that we can’t have discussions, but I think that many people are making their own echo Chambers in the fediverse.
Anything that isn’t moderated can be and “is”. Its not our responsibility to make sure people aren’t breaking the law. Hopefully that won’t happen on Lemmy but at some point it probably will. Its a double edged sword. Lemmy is meant to be used for good but will inevitably be used for “evil”. There’s not much we can do to stop it