I agree, it certainly is not his trait to remain silent he seems to take pleasure in any attention given his way. If he was told to stop spamming with one account he should not have started spamming with the other as that is a self-defeating process and very strange behaviour.
If he were temporarily banned it would explain a lot. I doubt he locked the threads too therefore is probably more going on here.
I'd actually like to think that he's finally got tempo-banned for his spam. He was previously warned by Cyrus to reduce his spamming frequency, of which he "complies" by posting with his other account [that whole ban-evasion-with-extra-step thing]. I can't find anything about him being banned on modlog [IIRC, it only records perma-ban, tempo-ban will not be listed there], and it's not his... trait to remain silent with all of the topic about him. I don't think he even has the capability to do that. So the most logical explanation will be a tempo-ban.