Is there a way for me to disable the auto friend request? I have 4 million friends now and it's ridiculous to go through and delete every single one of them, and remember the real people I want to keep on the list.

i'm pretty sure you have a bit less then 4 million bnet friends.

but if you want to trim it down a few million, go to the setup tab and click one of the remove buttons (all, offline, or 5)