Ideally, those guys should find something they had a real passion for instead. Because they/you might be really awesome doing something else.
I admire people that love something which won't pay them a salary, then do a job they don't care about so they are able to "waste" most of their time with (real examples) their board games, table tennis, etc. It isn't optimized for GNP, but people must decide [themselves] what they really want from life.
Edit: 'cauterized', note the word "Ideally". The last paragraph is even an impassioned argument that it is not a bad thing to live for something else than your profession. Sorry I wasn't clear.
Some of us do software development because we find it more enjoyable than, say, law, and because it pays the bills pretty damn well. Guess what? Outside this profession, and probably inside too, that's the reason MOST people in "professional" occupations choose their careers. The difference (that shouldn't exist) is that in most careers it's perfectly acceptable to work 9-6 to pay the bills and then spend your free time doing something you care about (like spending time with family) that will never earn you a dime.
Did they actually scoff or did you, essentially, "scoff" yourself.
There is often a subtext to this sort of observation, and it comes through in the blog entry as well -- it isn't enough to say "I don't do that. Too bad.", but instead has to take it further to saying "I don't do it, and neither do you, damn dirty liar. And if you do, you're doing it wrong anyways."
It's kind of ridiculous.
Some people really live this 16/7. And good for them. Others live it 8/5, and if it works for them then good for them as well. But it is obnoxious for the 8/5 crew to tell the 16/7 crew that they're wrong.