+1 to you and -1 to the aggressive and insulting comment that prompted you to comment.

I see this a lot on HN too: people who've experience some level of success (as pg would say the first thing you learn when you get rich is that there are many levels of rich : ) and who hence think they know it all about everything and can constantly try to diminish others.

There's a lot of negativity here but, thankfully, there are also others who are here to share, educate and learn.