Using server sided bugs to gain advantage over the rest of the players is bug abusing and it's bannabe as far as my knowledge of rules goes. If you encounter a bug you are supposed to report it not to use it to your advantage to ruin the experience of other players... And about the darkmoon faire buffs, they are obtainable only when the Darkmoon Faire event is up, they are the buffs you get for two hours after answering the questions of the certain NPC, as far as i know Darkmoon event is not currently up, unless it's a server sided bug again he shouldn't be able to get those buffs and if they are server sided bugs then that is yet once again bug abusing...