There seems to either be a problem with people being aware of this policy or they are ignoring it and editing anyways.
Here is the deal, the Spoiler policy says the following:
The Rule for comics is only give out the synopsis when in the first 4 months after it has been released. This also means no adding content on other articles that may reveal information that ruins the contents ending.
I feel the policy is quite clear. I have went ahead and added a reminder on the policy on the front page to read, but the policy will be strictly enforced.
The policy includes Characters, Locations, Weapons, and anything else in the comics. Do not add categories, links, or any information suggesting that the subject is in the comics til four months after its release.