There's only one thing that really comes to mind, and it's not really a trend or fad, but not allowing people to explore darker/problematic themes. I think it's becoming more and more accepted nowadays, as I don't see as much bashing as there used to be. People are more cautious with tagging triggers, and making sure they're keeping their audience in mind with read mores and whatnot.
Just... let people write what they want to write (so long as it's not legitimately illegal, obviously)? It's not hurting you in any way, and if it bothers you, block and move on. Not that hard to do.