Love this...and especially these rules:
--Your avatar picture shouldn’t be a logo. We don’t meet logos at parties, do we? You can include a logo, but make it you.
--Unless you’re a fictional character, more often than not, your avatar should be you. Amazing Simpson-like renditions of you are interesting for about four hours.
--Your Facebook profile pic can be not you, but it often means that others might not accept your friend request. It feels creepy friending a four year old kid (avatar).
--Your picture can be you from 10 or 15 years ago, but that first face to face meeting is going to be jarring.