Hmm... I suppose something to the extent of:
Engineer
Staff Engineer
Senior Engineer
Principal Engineer
Chief Engineer

In regards to the backend, a member level doesn't change for previous posts once it reaches the "x" point.
See following image:
Member Level.jpg

Two posts. One changed, but the previous didn't. Odd.

Also, on the back end, I had to manually select that I wanted to subscribe to posts when commenting. To me, that should be set as a default. I couldn't figure out why I wasn't receiving a notification in my email when something new was happening to a thread.

Last, the timecodes on my posts were off. Typically there is a setting in the back end for the user to select their own location or time zone, though I didn't see this on VBoard's. Hmm....