i agree. the criminal part is worrying to me too. and especially in the media, they have a tendency to show bitcoin as criminal money which is never helpful.

but as for gambling and porn, i think the gambling part has grown very well over the past years and it is gaining a very good popularity and i hope it becomes a good business in bitcoin.
but i don't think bitcoin was very successful in the porn industry, there is a couple of very small businesses here and there which are accepting bitcoin but nothing that is a big deal.