Er, that's the exact point of the BSD license. The GPL even allows selling binaries and source code, but not re-licensing.
So the gist of this blog post is that you offered your source code under a license that allows re-licensing provided that your copyright and some notices are included, someone did it, and now you realise you want the GPL. I applaud this person for taking advantage of the very point of BSD and making some business out of it, that chap is smart.
If he's using your logo and you didn't license the logo then that's a copyright claim. But you have no right to whine about the source code. He can say whatever he wants about it, that the "product" is his, etc. (You think Google Chrome doesn't use a hundred libraries written by someone else? But it's Google that made Chrome, right?) And in YOUR LICENSE you wrote “you cannot use my name to advertise”, so the only question is whether your copyright notice and license terms are included in the redistribution.
“… illegally selling licenses to my source code for $13.99-$59.99.”
I would be VERY careful about libeling people by publicly outing them as doing illegal activities. Alexander Moskalev may even have a case against you for defamation or libel. I'd take this blog down if I were you. And then go and read some pages from http://fsf.org/.