I suspect that was the intent, but that's not how it played out, at least as far as the infamous Rollo was concerned. As I recall, here's basically what happened:
1) It was revealed that Stealth Marketing was occurring. Immediately many people didn't like the concept mainly because it seemed underhanded and made people suspicious of other Members recommendations/advice.
2) Before this, many people(myself included) were already very puzzled/suspicious about Rollo. He always had strange and unique "problems" with ATI Cards that mysteriously all disappeared when he switched to Nvidia Cards. Not only once, but 2 or 3 times he claimed to have tried differing ATI Cards and have the same strange issues with them. With that "experience" he constantly went from thread to thread repeating his claims and recommending an Nvidia Card despite no one else experiencing those problems and most website Reviews recommending otherwise.
3) AEG/Stealth Marketing by Nvidia revealed and Rollo insisted he was not involved. I don't recall how long his denials went on, but it seemed like a long time then, but many people suspected he was involved as that was the only explanation for his odd posting. IIRC though, others were exposed who were thought to be Nvidia Fans, but certainly not with the kind of stories being spread by Rollo. These outed AEG members beared the brunt of criticism while Rollo continued on and the suspicious members constantly followed him around raising their suspicions he was involved devolving thread after thread into giant cluster****s. People were Banned for not letting it go and devolving threads into huge flamefests over the issue.
4) Again my memory is a little sketchy, but it seemed like this went on for months, although it may just seem that way due to the sheer volume of discussion on the matter. Regardless, it was eventually revealed that he was indeed part of AEG. Given all the drama that had ensued during the whole thing, this revelation caused its' own ****storm and damaged the integrity of the whole Forum. IIRC, it took a few days after this to finally Perma-Ban him.
AEG/Stealth Marketing: Like said earlier, a lot of people didn't like the idea of it from the moment they heard of it. Rollo was the sum of all fears in that respect and he really tainted the concept so badly that even the accusation of it occurring causes a furor. See this thread for proof.