Yes, thanks for the heads up...this is the first I have ever heard of this being an exploit! And, Ive used that fabled "[alternate] entrance" more than once...if I were to get banned over something like that...with no official warning that this really is an exploit, well........
Hmmm....Do the Devs not realize that doing stuff like that only makes people want to know what their talkin about even more? Well....time to do a google search...I just gotta know
This still continues to amaze me. Check out the discussion about this on AOVault forum, where Genevra, the FC exploit woman posted (scroll down to her two posts).
Also some interesting info from one of the AO coders.