The exploit: anyone can set the teleport point, regardless it is crusade or whether the character is a guildmaster or not. And you still can teleport to teleport location even when it is not crusade.
I reported the loophole/bug to bug report @ siementech & even email to their then GM/webmaster several time. No response or action taken at all for >3 months. During that period I keep sending many players to unknown maps (causing them stuck, server not available) & to d4/toh2 demons gate during crusade. Yet they failed to take notice. All they did was keep restarting the server thinking server was down. I finally fed up & post the bug report on the main forum when snakey was leaked out. Did you know what the fucker GM did? He delete my message goddammit
The rest is history I posted the older snakey source code to the forum & someone grab it & finally it end up in outpost. & I found outpost

p/s: did you know that inside snakey was a patch to fix the expbar for player lvl 140 above?