I also have a K20d with no hot pixels (as far as I know). Maybe I will play around with weird edge-case tests to try to expose them if i have some time. Just curious though, what would dpreview have to gain by lying about it? My guess is that they have found something that may not be evidient in regular shooting, which would make sense for them to really be "pixel peeping" - they ARE trying to write a technical review.
Also, I'm not the biggest fan of RiceHigh, the way he goes about saying things can be pretty hard to take, but i don't think he should be banned. He generally is talking about real issues, even if he likes to sensationalize them (Maybe he can apply for a job at Fox News?). I don't think what he does is any better or worse than the hordes of people denying that the issues he talks about exist at all. If we aren't going to have a middle ground, maybe the best we an do is two polarized sides to the "discussions"
I do agree though, that it's pretty strange how dedicated he is to seeking out any and all Pentax-related issues, and blowing them up to epic proportions, even when they are minor and/or very uncommon. Very strange dude. Must take a lot of energy! He must not get a lot of actual shooting done
Anyway, I'm very happy with my K20 and lenses, so I'm going to go take some pictures!