Pedro said:

i didn't get it… ¬¬

In the chat room that we're using, the way it works is the first person in the room becomes a moderator(a.k.a. Operator .. or "Op") and controls who else can and can't be a moderator. Obviously for a structured chat we can't just have moderator's be first come, first serve. So most popular rooms have a program pretending to be a person and the program gives out moderator status to the appointed people and if you get there first and you're not on the approved list it takes away your moderator (Op) status.