They should be set more along the lines of how much posting you do rather than the titles like "engineer" and stuff.

I am not an engineer. I should not have engineer next to my name. (yet, give me a few more years)

Initially that was somewhat misleading to me, because when I see engineer next to a name I assume they can answer my question. Here though, you can have a few thousand posts of drivel if someone is careful enough to not break rules, and that title would imply that they have a clue while in fact being completely false.