It would be allowed in the default list. We are already including nsfw subs: fatpeoplehate.eth, which is “anti”, and plebbit-ukraine.eth, which is “gore”. All NSFW subs appear in Plebchan’s homepage board list, whereas on Seedit they don’t appear on p/all unless the user allows nsfw content in the settings (same as old reddit). Btw, now you can also mark individual posts as NSFW, on Seedit v0.3.0.