I think it's great that social media can be so easily linked in with games like this, but what about those of us that don't really use Facebook or Twitter? Right now, the only way I can add a friend is to email or IM them and get their profile page link or somehow actually find them in game. It's not very convenient, and that is how I found out about this game in the first place. While I have accounts on some places people use as social networking, it's not my thing. I have enough OCD issues to not need more compulsive things to check.
So what I'm asking for is other ways to find people you know are part of the game. Like searching by email address. For example, if I find out Friend X is a Glitcher, but I don't get their info while we're talking, I can go to that friends tab and enter their email address and it will send me to their profile page if the email matches an existing account. Of course, I'm sure some people wouldn't want to be found that way, but that could just be a checkbox in profile to allow or disallow that kind of account lookup.
This is more of a minor disappointment in the current user interface because I get frustrated even trying to follow people's tweets, buzzes, shouts, scribbles, etc. on all those darned social sites. Not all of us are in love with it.