what part of 'the ak forum' would lead them to believe anyone would want to buy gates?
It's like me going to the quilting forum or the ice chewers forum and saying "LOL I got ammo for sale 9mm here's a linky link!!" Might there be buyers? Yes.. but it's kind of a long shot and inappropriate no matter how you slice it.
The lowest grade ones do that. 'lol I joined an hour ago' spamspamspamspam across literally all the subforums. There's likely a how-to guide where they tell spammers to wait a month before posting their spam links. Build their post count by posting nonsense or repeating what other people say so they don't seem so obvious.