You mean you want spam.There should be no tool that let's me see a listing of people lfg. I want a channel where people have to talk and interact. There has to be activity on both sides: the person looking for the group has to be reading what people are saying, what groups are looking for more, etc; the groups looking for more have to be reading the channel just as equally. That system is much better than any stupid tool that severs interaction between both parties and the larger community.

Between spam and a basic LFG listing the listing seems a much better choice
