If I remember correctly the limit was 90x90 the last time I checked, so you're both wrong.
Users are permitted to utilise a gallery avatar or to link to one of their own (subject to previous points on misuse of bandwidth). User defined avatars are to be no larger than 90 pixels square, contain no animation, contain no image which attempts to portray the user as having an official status here (e.g. mimiking ranks or copying avatars of team members), may not exceed 6KB in filesize and have a consistently high availability (i.e. links to images on slow servers or those prone to failure may be removed).
See? LOL I hope a moderator doesn't get mad at me I was just trying to be funny.........THEY WERE DOING IT!!!!