Figured we'd start up another one of these so we can contain all our whining and complaining about the forum changes.
Here's some helpful links and tips for you guys:
RSS feed subscribe to the RB3 forums
This is the easiest alternative to the lack of "My Forums".
I'd recommend turning off user signatures and tweaking your notification settings. No emails is probably best.
A link to helpful (see: useless) articles about your Xbox console.
Don't forget to tag all your posts and favorite the crap out of everything until the forums break. :)