We reset AP when we are informed / become aware it is no longer decaying (i.e. working properly) like it should. Bottiger, the owner, reset it late last week/early this week. The reset didn't take it down to 0 though; it simply took it down to where your AP should have been with the decay.
https://www.skial.com/threads/so-i-just-lost-half-of-my-aps.71186/
https://www.skial.com/threads/so-i-just-lost-half-of-my-aps.71186/
