^ I've noticed those names too. They behave exactly as you said.
Wanna know something even more enlightening? The guy running the exchange is none other than the well known scammer 'RealSolid'. He abused his control over the centralized solidcoin (suddenly reduce block rewards to under .1 SC per block 'thereby increasing the value of SC already in circulation), and also scammed his own delusional little followers out of 250 BTC so he could release microscam. Of course, he's nearly as late as BFL.
These people have but one objective: helping themselves to the money of anyone who is foolish enough to follow.