That's a pretty facetious reply. Lemmy has tons of ways of curating your feeds and that's one of its big strengths in my opinion.
This isn't about seeing the occasional bit of NSFW material (which I still see occasionally on my Lemmy feed, despite having blocked a bunch of NSFW communities). This latest Instagram debacle involved people's entire feeds being full of not just pornography, but also heavily NSFL gore stuff.
However, the real crux of this issue is clear when I imagine how I'd feel if a problem like this happened with Lemmy — I'd be unhappy, but I wouldn't flee the platform, because I trust various admins to not bullshit me about what had happened and what was going to be done in future. Meta has burned through any goodwill it might've once had, and the only thing that's transparent about them is their bullshit
Maybe just maybe, people are ok with gore/porn when they're expecting it, but don't like seeing it when they're not?
I don't use meta garbage and have been on the Internet long enough that I regularly saw gore videos as a teen because I hung out on 4chins all the time. I'm not averse to gore, but I still don't want to randomly see that shit in my feeds.
Also, well adjusted people generally don't feel good when they randomly see gore and shit....