_hyrb
Shit that's deep I'ma have to think on this one.
Every platform created for this reason that gains a large following does so specifically because it attracts people who recently got banned from some previous existing service for being terrible. See 8Chan post gamergate or Voat post-banning of r/fatpeoplehate. Not saying it's wrong to be pro-all-kinds-of-speech-allowed-on-platform-that-you-run, but those kinds of platforms usually only surge in popularity when a bunch of people get banned from a more mainstream platform where being a dick is against the rules.
Edit: don't want to make it sound like big tech companies like Twitter / FB and Amazon are "good" for doing this. They're only doing this because they feel pressure to do so. If the execs had a moral compass, they would treat every user the same, and ban people based on the same set of rules.
First they came for the most powerful person on the planet, and I said nothing...