You're my neighbor ID. I'm 3822. 3823 doesn't exist for some reason.
A lot of IDs appear not to exist.
The RTB Listings at least only show those who have logged in after the system was created, so some missing IDs could be those who purchased, played for a short time and just left never to return.
Then again, it hardly explains the 10k+.
On the topic in question:
I wish people would stop going nuts about every denomination of 10k, 1k or w/e. Sure, it was nice at 10,000 because there weren't too many people but since exponentialism seems to be creeping in it's getting stupid to celebrate, certainly when many people claim anyone higher than, say, 20k to be an inadequately sane player.
100,000: I will celebrate.