eamon
Explorer
And this from products that are playtested, receive peer review, professional assistance and design, etc.
So yeah, I have to assume that newbie DMs face some real problems. Like the thread about cool encounters where one was marred because 4 people died due to a monster being cooler than it should have been for its level.
I understand that mistakes make it through - but I wonder why some of these fairly obvious mistakes never see errata (or don't see errata in the 1st two years after publishing). On the other hand, there's quite a few very subtle errata on the list too...
Oh well - good catch!