It doesn't matter how many times you say it, AnonyMint. Just because you can say it, or even that you have a link to someone else saying it, doesn't make it so. You are welcome to your opinion, but I've read over the theory of that mining cartel attack, and I think it's just FUD. There is more to Bitcoin than either you or him understand. More than I understand, and I'm one of the people who actually understands how it works at the protocol level.
Read the linked thread on the Transactions Withholding Attack. I am the one who discovered the attack, and I have defended against everyone who has tried to refute it. No one can refute it. Read the thread and try to refute it (post over there in the thread). You can't.
I just did. And you're not the first, either.