I think that is generally true, but also note that the polls are taking place in specific forums. I visit Genral rules and 4E rules exclusively (with a monthly look at gamers) so itf you put a poll about 3.5 and pathfinder in the pathfineder forum, I am not voting there.
Both polls were in the same forum -- the General Forum -- which gets by far the most traffic on the site, so far as I can tell.
I think most people using the site do use "General". It's the place I go 99% of the time.