This bug was marked as fixed, but it doesn't look like it:
Notice how it only partially highlights my display name.
Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. It only takes a minute to sign up.
Sign up to join this communityThis bug was marked as fixed, but it doesn't look like it:
Notice how it only partially highlights my display name.
For some reason the highlighting code considered an underscore to not be a legal user name character. So it actually didn't have anything to do with your face – although that's bound to cause some issues, since for JavaScript, those thingys aren't letters. Either way, the highlighting is fixed in the next build.