I honestly don't care. Personally I like to keep a small amount of friends and really only good friends, maybe it's because I like to see a persons face before I add them to my friends list. I am shocked that Halo 2 is so important to them though, I mean, Halo 3 is the same thing online but with enhancements, so it's clearly superior. The only reason I ever dust off Halo 2 is if I'm bored and want to replay the SP campaign. To be fair, I see why some games linger on the web for a long time, like Doom, but then again Doom > Halo for infinity (And before you flame me, I love Halo, but I've been Dooming since I was in diapers.) plus Doom has more of a mod community, so it's constantly being updated. Plus there's really no game in the series to replace it, since Doom 3's multiplayer was the same as the original Dos version except everyone had tar on their shoes.
Oh well, now I'm ranting.