It is the same solution that is needed here on Steemit.
We need opt in groups and lists.

Made by anyone, followed by anyone (with privacy settings)
Then we can limit our view of steemit to that which we wish to see.
Or we can follow some of the best curators out there.
Or we can exclude all of the "the-alien-blacklist" list.

We need a lot more controls on what we see, and how we sort it.

If it is going to be a law in the steemit sphere, then it needs to be hardcoded into the chain. The lines have to be clearly known, and the triggers have to be set in stone.

Because, if you are an administrator on a bulletin board, half your time is banning trolls, and the other half is unblocking someone who was just stupid.

In the future, the interwebs will be different. Everyone will have their own private "wall" server. And sharing info will be to those you allow to view your wall. Completely in your control.
Those walls you want to see are all under your control. With an actual really great AI that can help filter and find stuff based on all kinds of parameters, including your mood.

There will be no one blocking anyone from speaking. But, you can ignore everyone.