That's a pretty funny easter egg tho, I wonder if there are more.
Unless an admin has added more, afaik the only other one is that your post count changes to 'leet' when you reach 1337 posts. Like this:
http://i.imgur.com/rLqDltF.pngYou guys made me search the SMF source..
'posts' => $profile['posts'] > 100000 ? $txt[683] : ($profile['posts'] == 1337 ? 'leet' : comma_format($profile['posts'])),
So there IS actually another easter egg, just not that boob-thing lol. Upon more than 100.000 posts you get the following permanent post count:
$txt[683] = 'I am a geek!!';
Seems fair.