It does seem a bit pompous - so at first, I would avoid such titles. However, though, it became difficult for people to identify me. Anyway, I'm not cutting down others using such titles. It's mostly the way I want people to see me.
I don't really hire any extra administrators for forums when I own them so I just go with "admin" as the title. Most people can figure out I'm the owner that way, there is no need for any extra titles or words.