Well, the FSM doesn’t have to be SFW, but I try to keep it clean. Mostly, there are so few NSFW entries that it really isn’t “worth it” to implement following the HREF’ed images.
Dirty little FSM secret – I have implemented something to keep the FSM’s user list “safe”. If your Fark username contains objectionable words, you (and your entries) don’t go into the FSM’s DB. Much more draconian than the Fark filter. There was one farktog who’s ID suggested carnal knowledge of livestock. I took objection and filtered him (her?) out. I think I used Carlin’s list as the seed of the filter.