[llamaimperative]

Sounding pretentious (for one's own tastes) is a perfectly defensible reason not to do this. I don't know anyone who enjoys Mr/Ms/Mrs.

[keybored]

Right, I misread this part. I thought the pretentious part was using your titles in your name. Not the Mr/Mrs thing. Oh well.

[keybored]

I see no difference in pretentiousness between the two styles.

[llamaimperative]

Sure, but it's not your name.