Just a note for you guys putting up your dog or any number of other non metalworking related avatars, that just because you see others getting away with it doesn't mean the rules have changed and it's suddenly ok.
If anything that makes matters even worse and puts the whole forum at risk of eliminating avatars altogether except for moderators, if this gets too far out of hand. See Avatar guidelines regarding what is acceptable.
And FWIW, if you want to put an image of yourself that is ok but please make it such that we could recognize you in a crowd via that image. A whole body shot photo of you that is unrecognizable as "you" is pointless (other than to determine you are or are not 300 lbs maybe) and not acceptable.