All trilogy sites, and almost all other SE2.0 sites, have a hover effect on their "ask question" button.
It can be argued the "ask question" button looks less "clickable" than how it looks in all the other family sites, it's very close to a decoration and thus really needs some way to emphasize its link-iness if a mouse cursor quickly passes over it.
Seriously... it's a spaceship. We're talking high awesomeness factor here.
I know many others want it. Come on guys... together, we can do it. Upvote this question until the vote count overflows, until Jin has no other choice!
EDIT I forgot it was suggested before, though not as a real feature-request; original credits to LessPop!