When I'm aware of it, it's not clear where it comes from. It looks a little like it's some combination of human behavior, system compromise, government activity, criminal activity, error, funded political influence, ISP filtering, etc etc. I can't tell.

It looks like some of it is clearly illegal.

It looks like some of it is clearly unwanted by people who would have authority around it.

One of my tentative fears is that if it were pressured a lot it could "go back into hiding" and assert strong harmful powers invisibly. It would seem good to address it in a way that prevents this.

Today, I got a "meetup" notice for a cool event, and visited the description. I went to search for similar events and none came up. Not even that one! I don't see any way to find it again, now that the notice has gone away.

This seems to be censorship of my search results.

It would be quite reasonable to prove that, but _why_ is it happening? How do we protect people from things like this happening in harmful ways?

Part of me considers such protection would relate to where-ever it comes from and how and why it happens.