In the past I've coded lots of things for blocking various things, which is all about excluding what we don't want.
I'm finding it much harder to think of ways to attract and promote things we DO want.
In an ideal utopia we'd be making social media that makes people feel better. Not neutral or the same as before and certainly not worse than before. I don't think we can get there by excluding bad things, we need to be including/nurturing/promoting good things too.