Because off topic forums are bad for...

1. You.
2. Square-Enix's image (think of all the rabid God and Politics debates).
3. Bandwidth hog; they get filled with redundancy and garbage that has nothing to do with the goal of the entire message board.
4. Search engines will pick up on it and completely misrepresent SE's image. An image is important to a company, especially in the entertainment business.

Thank you for reading this off-topic discussion. Leave your rants about everything in general for Yahoo! News or something like that.