I think the usual definition of porn is anything that is intended to cause sexual arousal, for anyone. Obviously posting something from a medical journal or a pic of the Venus de Milo isn't porn and shouldn't be bannable (unless the poster is posting it AS PORN, and it would be fairly obvious if he was - any mod worth his salt should be able to take the context of the situation into account).
As for situations, if you create a situation that makes someone feel uncomfortable in a sexual way, then you're probably treading on thin ice.
That's my opinion, anyway - I don't know what the opinions of the Peanut Gallery are.
As for situations, if you create a situation that makes someone feel uncomfortable in a sexual way, then you're probably treading on thin ice.
That's my opinion, anyway - I don't know what the opinions of the Peanut Gallery are.