I think it is a bad idea. The people the constantly ask for help will imo never be able to level toons to 70. They will lose interest and stop MBing. Let's face it Multiboxing isn't for everyone. If this was implemented the people that actually read the stickies and are able the gain the knowledge by reading, would maybe put of the site, because of a min post requirement.

I for one am more of a reader then a person that has a huge post count.

And how would you rate the post? Would the let's say min 50 posts have to be real posts, not just the, I agree, and good idea posts. It would be a huge job to filter out the crap...

A solution could be that a moderator make a post in the silly question post that they read the stickies, and move the tread to a "how not to ask for help section of the forum", could end up being quite funny actually. But, all in all it will mean more work for the moderators.