Nothing. The only difference is if you're on a mailing list that Linus frequents, or if you're only reading a single post from that list bereft of context because someone sent you a link to the point where Linus puts his foot down.

Its like Zed Shaw, he wrote a great introduction to programming book I frequently recommend and even helps random people learn over twitter and email. But post some of his work on HN and you'll find a bunch of people still sore about a single angry rant he wrote a few years ago.