Zexcoiler, my apologies for that other user. He's a known spammer on a couple of other wikis, Acepedia included, and he shouldn't have said anything stupid like that.
This wiki isn't active because there's no real reason for it to be active xD It's mostly a staging ground for people to share their fanon ideas as well as to put stupid Ace Combat-related humor. It fills a niche on top of the niche that Ace Combat already is.
If you want to contribute, absolutely nothing is stopping you :)