americans love to reply to posts from non-americans looking for some product or service or whatever and they link to an american shop or amazon. what's up with that? what's wrong with them?

americans love to reply to posts from non-americans looking for some product or service or whatever and they link to an american shop or amazon. what's up with that? what's wrong with them?
podcaster i follow has a bit about how, having a decently large twitter following, every time he says something like "lovely 30 degree day out" he gets a bunch of replies from incredulous americans assuming he must actually be freezing
Here's a link to where you can pick up the highest quality annoying americans for your replies section!