Is it really that much effort to click Upload and find the right file? It's quicker to do it that way rather than go through pages and pages of avatars until you finally find one that you want, so being lazy doesn't really count.

For people who don't have their own avatars they can always request to have one made in the Avatar service thread in the Help Forum.

Sure, more avatars could be added to the gallery, but surely it's not that important.