Yep. rob05c there was a brief time when we had a large influx and people were posting some grotesque porn. All images were changed to a cute baby goat leaping in the air. There are no shortage of sites for sharing porn, that's not why we started this place.
That said, it does pose a grey line of what is or is not porn. I suppose it's up to the community to decide whether or not we are just in the interpretation. The fact that we've not had to make such decisions often, says a lot about the kick ass community we have.
Is this scaleable? Nope. Should we have a larger community we will solely rely on the community to filter such things.
I'm not anti-porn, I'm just anti porn on Hubski. Same way I'm anti car parts advertising. There's a place for that too, just not on Hubski.