For every person that's posted here, there's probably at least twice as many on the WBgames forums plus other game forums out there. And i wouldn't be surprised if there is at least twice as many again that have dumped the game and not even worried about posting or reporting it.
Out of the millions sold, sure it's probably small, but doesn't mean should be swept under the rug. Given what you've been saying it at least looks like they are aware, but as far as fixing seems as it's been handed off to MS. So who do we complain to at MS...
If they want more info, then i'm more than happy to help out. Tag me on TYM, send me a PM, send an XBL message.