The only problem with this poll is, that doesn't specifically mention Retail Vanilla knowledge/experience, and I'm pretty sure lots of people consider their "private server experience" equivalent to that. I have played (yes that includes raiding all available content) on pretty much all the major private servers and _NONE_ of them could provide "blizzlike" scripts. No matter how decently that private server was scripted, Please don't consider it as if it was Retail experience.
edit: or maybe I just shouldn't have voted, because I've obviously answered a different question