I have a silly Youtube video that I'm especially proud of. Is it allowed to post a link to it even though it's not metal detecting related? Just a video of me being silly :P
If it fits in with the family oriented (coarse language and such would most likely just end up being pulled) vein of the site then it need not be detecting related. As HuntNdig said, probably Everything Else would be the place to post it unless the content warrants a different area, and we can always move it.