Any attempt at replacing Twitter, Facebook, etc, is going to be deliberately swamped with pornographic and racist posts, with the goal of driving away normal people, so that the new venues fail.
The deep state doesn’t want to see competition.
There just needs to be a robust “ignore” feature. Most sites these days have that feature. You simply don’t see the responses of the other person. What would be fun to add is the ability to “hide” your posts from those posters as well.