Pretty much this. IIRC it was mostly his attitude that irked the members here. He didn't seem to do any research into any options to make his PowerPC usage better. It felt like he just bought a PPC Mac from eBay, booted it, tried to go to Youtube or whatever, and declared it useless. It was kind of frustrating to see the total lack of effort coupled with the complete willingness to pontificate anyway, especially since the members here have devoted so much time to getting the most out of these machines and have documented it thoroughly or even provided their work for free for the benefit of people just like him.
Nobody here is arguing that PPC computers are for everyone, and had he qualified his statements a bit and showed the various options, he would not have been met with as much hostility.