Thanks for all your help, guys.

Three more questions about Google grading rules:

1. Is grading done to a bell curve? ('Normal distribution' for all you
mathematical statistics nerds out there.)

2. Are grades fixed for all time or can they be changed? Can I adjust my
behavior in order to improve my Google grades?

and finally:

3: Are Google grades comparative, i.e. can I improve my grades by 'dumbing'
down. What I mean is can I improve my grades if I move to newsgroup(s) with
more dumb people?

I'm not worried about graduation. I already have an M.Sc. in mathematical
statistics and a Ph.D. in psychology. I lost my last job. What I'm worried
about is if my Google grades will reflect on my future employability.

Thanks in advance for all your help, guys.