If you check his post history, I believe you will be able to find the difference now. His first couple of responses to this thread was written in same crappy style. But that suddenly changed in the last few replays, which made me think that either the account changed hands, or several people have access to this account.
The difference in the writing style of the account is obvious even in the same thread. The account could be controlled by only him, but due to the reputation issue, he must have hired someone to help him make good defence. After such defence which appears lengthier, he will return to his normal writing style.