Current top 10: Almog, Crash, ZiPpO, Csongi, franz, daiNa, Bry4N, Lukz, barman and Random00.
Of these people, Almog, Crash, daiNa, Lukz and Random00 have played this month. Csongi has played games in July.
That's 50% (60% if you count Csongi) who have recently played.
100% of the numbers you mentioned are therefore pulled straight from your ass. Fact

I'd like to point out that if you beat Random00 now, you get so many points you almost instantly qualify for the PO (OK, you'd win, like, 80), but if you reset stats, you'd win 40. If you lose against Random00 now, you lose 2 points or something like that, but if you reset, you'd lose 40. (These are estimates with the numers I'm familiar with here, I may be off by a slight margin, but it's more about the general idea)
These numbers make sense if you've worked with rating systems before.