Riboflavin is vitamin B2, it clearly has a deeper meaning. We should wring our hands in analysis until we come to the conclusion that Dogbert is genius. Twitter=Cyber narcissism.
The office theme is predominant - but you must be forgetting all his abortive dating strips which come out all the time and are usually in a dating environment that isn't the office, plus multiple strips that often happen in Elbonia.
What I can't figure out is why Dogbert, as CEO, has no association with Dilbert at the office but lives in Dilberts house as a normal (?) room-mate. It''s l ike parallel universes almost.