In this instance, should we ban NSFL, hardcore gore content? I think it's not a problem since anyone can subscribe to the community they want but if the vast majority don't want it, we can ban it. Decisions must be made from the beginning.
Edit: Looks like we are going to ban it. Commenters are right that we cannot currently list NSFW and NSFL content separately on the homepage. Since anyone can open an instance, we should let other people to open an instance on lemmynsfl.com. Also moderating these communities can be hard too. So it's okay.
I also did in my instance at federotica.com
Porn and gore don't really work well together in my experience. Gore sites often attract "free speech" folks i.e. nazis, redneck racists, antisemites, homophobes, edgelords etc.
Unfortunately those are also the most active users on gore sites. If you really want to run a porn or nsfw site you're better off not allowing them. I know the decision is already done (luckily) but there are good reasons you shouldn't allow them. Sites that allow complete "free speech" devolve into a trash site that just posts noise (look at efukt or 4chan).