I am able to write quite fast and constructively but it does not mean that I am a burst poster although it seems to me that yahoo62278 will disagree, and we once argued about it.
I don't necessarily disagree with you and every case is on a case by case basis, but IMO 1 of every 100 posters who are posting fast are posting quality. Most that are burstposting are unaware and spamming to get paid.