Last week two quests/missions were identified that were bugged in a way that made them repeatable. These quests handed out Agility and Stamina as rewards. The quests were disabled as soon as this was discovered, and we have now adjusted the attributes of the avatars that repeated the mission several times. They now correctly have the Stamina and Agility values they would have had if they had completed the missions just once. If you have any further questions regarding these missions, please contact ROCKtropia Support. More...
This is good news indeed and probably the first time MA ever admitted a bug and took action to solve the issue (not that they had any choice).
They deserve credit for taking action. But on the other hand, such a bug would have meant a ban in other games.