Yeah this is a serious trend going on now. And not just on sites. But forum content too. This is why I encrypted the database. If they get into the forum database they can read all the pms, messages from sources to who bought what and for who.
There is a bitcoin scam going on twitter right now for different crypto currencies. The main developer of Monero (most anonymous coin) has a twitter handle that is Fluffypony something. Well the scammer made the same account name but used a capital i instead of the L in the name so it looks identical. Then goes and asks his followers to do a survey about monero and bitcoin. Then after the survey he offers them monero at 50% price to help promote it if they buy in bitcoin. Obviously runs off with the bitcoin.