As we all know, this is a forum for Kingdom Hearts. Even so, if anybody posts spoilers for Endgame anywhere on this site without spoiler tags, you will be banned.
If you change your avatar to something related to Endgame, you will be banned.
If you put something in your signature, send a message to somebody that is visibly seen, or share spoilers with somebody who does not wish to see them, you will be banned.
Some things to keep in mind: we have a literal shitton of graphics from KH1 and 2, so it's encouraged to use stock from other titles. I'd particularly recommend using the KHx images because those are beautiful and amazing, but it being a social game, very few people in the western community have ever seen them and that is a real shame.