Theretically, if implemented like City of Heroes does, it would be pretty boss. The titles aren't at all intrusive in the name at first glance because they're written in smaller font and specifically made so that it's not difficult to just glance at the real name. But if you take a half second of your time you can read the person's title.

See, just a little bit of juggling, draw attention to the name but don't make the titles unreadable