Probably Lauda and Thepharmacist is one person, why when Lauda is online and Thepharmacist is not?
It's because your limited imagination only allows you to come up with ridiculous conspiracy theories. I've said it before, and I'll say it again: I'm not Lauda. You can believe that or not, but it's true. Quickseller won't even take up the bet I proposed that he provide whatever evidence he thinks he has to prove the contrary. That's because there is no evidence, just suspicion based on (my guess is) similarities in writing style and outlook on the state of bitcointalk--and neither is proof. Neither is even good evidence.
I also did not find a ban on buying and selling accounts.
That's because there isn't one, which I said very early on in this post:
You people need to figure out just how frowned upon account dealing is on bitcointalk--even if it's technically "legal".