joke explained: the normal user of the OSUGAME forum would normally expect the users to understand the acronym of GMT( since most people on the forums are fairly experienced). however the joke is that the user "sadave" has defied this expectation by throwing a curveball to the question which asks the reciever if a person wants to be a GMT with the usage of "GMT" being of the glboal modernation team. Instead of refering to the original question about "global moderation team", instead, "greenwich mean time" is implied in the answer by the next replier