Not sure why you're laughing.
I may be proven wrong but the fact every major newspaper - broadsheet and redtop and the BBC site and Sky are all reporting it as fact suggests that it's very likely Arsenal have triggered it.
It isn't just on those silly transfer rumours pages anymore, every major site is reporting the release clause has been triggered as fact.
I don't believe everything I read, but trying to look at it objectively I honestly think there's a very, very high chance the release clause has been triggered and I think people who are just writing it off as rubbish and laughing at people for thinking it's likely true are being a bit hopeful. Not to say he will agree terms or he's definitely gone, but it certainly looks like Arsenal have triggered a release clause and are in talks with Vardy.