The solution to alternative communities having too many 'undesirables' is pretty simple; you focus on a specific niche/field that YouTube or whatever doesn't do well, then build up from there.
That's how Twitch took off. Started off being gaming focused, became a bit more open to other content later on. Same with Discord compared to say, Reddit or Twitter or Slack or what not.
The reason most alternatives attract the wrong audience/don't reach critical mass is because their marketing is always focused on the freedom of speech/privacy/whatever angle. That's attractive to a certain audience (those who are being censored more often on existing platforms), but not to the general public.
So you aim your new privacy/decentralised/free speech focused platform at gamers or sports fans or software engineers or what not, and then slowly open it up to the general public/all topics. Like how Facebook started out being aimed specifically at college students.
That's how Twitch took off. Started off being gaming focused, became a bit more open to other content later on. Same with Discord compared to say, Reddit or Twitter or Slack or what not.
The reason most alternatives attract the wrong audience/don't reach critical mass is because their marketing is always focused on the freedom of speech/privacy/whatever angle. That's attractive to a certain audience (those who are being censored more often on existing platforms), but not to the general public.
So you aim your new privacy/decentralised/free speech focused platform at gamers or sports fans or software engineers or what not, and then slowly open it up to the general public/all topics. Like how Facebook started out being aimed specifically at college students.