User blog comment:The Cartoon/Wish I Didn't Have to Post This/@comment-3105751-20110811012412/@comment-1363526-20110811015941

A PM doesn't mean that they desperately want to see you.

If anything, they noticed you were there, and decided to chat.

You act as if they waited hours just waiting for you to show up.

And it was heavily implied with the whole "follow" business.