Well, I found this from Dec 1999:
http://groups.google.com/group/rec.game ... 528b9c9087
2. Snooping is nerfed. It is totally worthless to the Rogue. I can hide
and I can walk 16 spaces in stealth walking. But when I snoop a pack,
I'm revealed. It does me no good then to even stealth up to you. The
only way to counteract this is by waiting next to the person you want to
snoop, snooping, waiting for his pack to open and then hiding again.
Hopefully you hide successful and the player does not notice.