(I had three minutes to type an explanation before school so bear with my being vague)
When I was OVP mod, I did that to crack down on the number of quizzes because there was a time for a while where they were far too abundant and were basically full of spam...we don't like the idea of being able to post a picture and a c/p results description and it adding to your postcount...we considered a no-postcount sub-forum at one time, but the crackdown was instated instead because of disagreements among the mods on whether it was necessary or not, so I did what I could with the power I had for OVP. I know they're making a resurgence, and if it stays like this, the idea may be brought up again, but it's not likely.