Originally Posted by Sphere

This would be disasterous imho. In theory this would completely nullify keyloggers, it would create a much different risk altogether. From guildies "accidently" giving their number out to lower rank members or even an alt of a nonguildy that somehow slipped into the ranks, to people "forgetting" their code and possibly getting the GM's by accident and taking advantage of it. I'm very trusting of all my members and know something like this would be an extreme rarity, but this would be a bandage with an all new set of problems/exploits.