This Achievement was added when STS had guild events on game back in 2018 & 2019.

Name: Screenshot_2024.01.25_06.15.21.434.png Views: 371 Size: 277.7 KB

Unfortunately guild events created too much drama and players who where generous enough and intelligent enough would all join the biggest guild to reap the reward of the event.

I do agree that is achievement should be removed from game because it is impossible to complete considering the event has been in the past and will never occur again on game.