I got into the Forums just 2 hours ago, logged in, and then I got some SQL error. InfinityWard needs to do something with their web servers.
The Infinity Ward site is buggy at the moment. And I do mean really buggy. The site used to be stable enough, but no longer. Once they updated it from phpBB2 to phpBB3, and tried to integrate it with the Community aspect to the site, all the bugs appeared. It's not uncommon that the forums go down for hours at a time, but this is the longest they've been down for. Using these forums is a good enough option, I guess