Can't have people just running around disregarding the rules. Think how disruptive that would be.

I'd step carefully here, because you really don't want to accidentally mention semicolons...

No Soup for You!

https://www.youtube.com/watch?v=svSGKJFSl-8

This is wrong. There's stories in new at the moment that start with a lowercase letter, and this story has a lowercase word in the title.

There's apparently immense social pressure to capitalize titles, but it isn't enforced by HN.

It seems there is some kind of job that regularily changes titles to upper case. We had that happen on the io.js 1.0 thread.