Really? We're going to complain about something that's free? Oh yeah, it's the Internet.
As a neutral observer (who did not downmod you, btw), your post did come across as oh-so-slightly whiney. I pay for Github. I don't care that they are offering Micro free.
What would be awesome is if they sent you a subscriber-only shirt after every 12 paid months or something, though. I don't actually use private repositories; I pay for the micro plan just to show my support :)