Eh, TSR isn't WotC, and 2009 is not 1997; I don't think WotC management even has any personnel in common with TSR management, do they?
That's kind of a cheap insinuation, isn't it?
I don't see the admins being particularly "pro-WotC" as much as they are "anti-jackass"; it just happens that the majority of posters seems to be rather upset with WotC currently, so there are simply fewer "pro-WotC" people being rude at the moment (because there are fewer "pro-WotC" posters ATM).
Actually, in the big ol' closed thread about the PDFs, I think the percentage of "pro-WotC" people moderated was much higher than the "anti-WotC" -- simply because the one "pro-WotC" poster I recall being moderated was something like 20-25% of the "pro-WotC" posters in the thread.
(FWIW, the quotes around "pro-/anti-WotC" are because some folks would probably balk at being labeled as pro- or anti-WotC; the labels are just shorthands for "people upset by WotC's decision" and "people not so upset or more upset by perceived anti-WotC vitriol".)