@MartinScharrer Well, this is a rather late reply, but here are a few comments on the Enlightened badge. Firstly, it's important to mention that one requirement is that you're the first to answer the question. (And then you need 10 upvotes and acceptance.) Secondly, I don't know if you're aware that they've changed the rules recently. A whole lot of Enlightened badges have been awarded on July 7 around 3:30 UTC!
@HendrikVogt Thanks. I now about the first answer rule. I should have mentioned it then. I was not aware that they changed the rule. So you always get a new badge now even when an older one fell below the requirements?
@PauloCereda: Another idea I had was to use TikZ to draw some glyphs and convert them to SVG and then to a symbol font. I imagine some new arrows and circled numbers etc.
The TeXworks logo is so cool. I wanna vote twice. =P
By the way, certain ads could have some sort of sazonal priority. For example, when a TUG conference is near (and considering we have an ad for that), the ad could be more frequently used.