not much, but it's pretty much established that HN covers a group of topics that interests a given community.

Right now on the homepage there's an article on "Alcoholism in Antarctica", discussions about royalties or implications of being under state surveillance...

Looking at your profile I can even say that you already knew that, seeing that you submitted an article about advertising and another one about world ward 2.

nothing , c'est juste parler pour ne rien dire ;)