Twitter has started giving new profile suggestions with "Similar to you" profiles (as it did previously with "who to follow").. Well, what does twitter mean by this? I mean, similar in what way? What are the parameters, if any? I'm seeing on my twitter wall someone's profile which twitter says 'similar to you'.. but why would I care about it if I don't figure out why the profile is similar to me? Clearly, twitter does this as a part of its business strategy, and that is welcome. But, isn't it vague??