Hooooever, "bug" could be a bit ambiguous to a lot of people. Looks like in a real deployment, you have a little tooltip that says "Spotted a bug? Drag me there!". That makes sense to developers and the like... but those are also the sorts of people most likely to write a good bug report anyway. The people most unlikely to write a bug report are the sorts of people who will read "spotted a bug" as "there is an insect... game?... on this site?".
"Issue" or "Problem" would be better, but keep the bug graphic! It's cute. :)