Re: I've seen this before
The easiest way to discourage visits to abusive sites is to force them into deploying abusive countermeasures. Even the terminally stupid or ridiculously uncaring about privacy will respond to sites becoming a pia to use. You have a modicum of proactive choice about visiting these sites, unlike spam and anything forcing visits is going to get stomped on hard.
Countermeasures from abusers are part of the solution!