They are the ones that are ALWAYS in there they will even be kind enough to drop hints of your personal information, they read pm's and use that for their 'stories' (that are posted on their walls) and general conversations that are usually talked in a coded way.
Don't believe me, watch the general chat over time and you will start to see it. Besides the pay for everything at a high price with no rights to any work or creations you make in there, the adminstrators of the site like to play on alt accounts and they heard genuine players and toy with them in a inside game that they play against each other.
I would like to add after over 18months of being inside and watching the general chat, there is another seedy undertone to the site.