At the top of the screen where it shows your rep next to your username, it includes a comma for numbers in the thousands (like 2,013) everywhere EXCEPT the forum. If you click "Make Games", "Store", "Tutorials", any of those, you'll see the comma, but when on the forums, you won't (like 2013).
There's absolutely no way I can keep making games with such a discrepancy plaguing my screen! <img src="smileys/smiley7.gif" border="0" align="middle" />