I meant "trial bases". And Seisatsu's post was >>691
(I messed up the link).
Anyways, the /h/ board is specifically
for hentai and NSFW content, but some NSFW content can still pertain to other topics; thus, users may still want to post NSFW content where they deem it necessary.
If anyone saw something they'd rather not have seen, that's an unfortunate but possible outcome for viewing a NSFW site.
…Not that someone couldn't post stuff like that on a SFW site; it's just there are higher odds of seeing it here.