What it is doing is stretching the avatars in both the threads and the show members file.
If your max width and height are 100x100 and someone uses an avatar of say 50x60 it distorts it to 100x100 no matter what, really looks bad and ugly.
When the code is sent to the browser it sends with all avatar images width="max_avatar_width" height="max_avatar_height" not checking to make sure it is actually smaller or larger.
Not exactly sure I used the correct field stuff but you get the idea.
