Discrimination

Run a re-test.
Attitudes change through time, and I'm pretty sure with the release of the MTS, the attitude might change (as in the %s or people voting for each category.)

I just looked through the thread and it seemed like MTS was out already. You could be right with the attitude change though, since what motivated me to write up that thread was because people kept on complaining how MS wasn't really F2P anymore, and how much it sucked.

Some reasons people cited for MS being more P2P than F2P was because of the total expenses you could accrue, while some of the other games were pretty much pay once, get the whole package. I thought this was interesting.