I think it would be a good idea if you could find and use your own armatar. Then everyone may be more unique and would be easier to identify. You could filter some images if you're worried about obscene images.
Lol so many topics, need forum search. Anyway, this topic has been made almost thousand of times, the answer would be no because of inappriotate images, though yes I would like to see this with a regulated system.
And it would be wayyy to hard to filter images. Is there even an image filter out there? I don't think so, so that means someone on the AG team would have to go through every person's armatar to see if it's appropriate.