THAT statement is dead wrong. Or at least, in dead opposition to my approach to learning. If someone says five things, and four are wrong but the last one teaches me something new or gives me a new perspective on something I already know...
Reading the four things cost me maybe two mintes. The last one cost me thirty seconds to read, plus another couple of minutes to savour. The total investment is maybe ten minutes and I learned something.
Of course, if I skip everyone who seems to be wrong right off the bat I'll avoid some situations where all five are wrong. But I have something to help me out with that: The post is on HN and some other nice people are voting it up. So something must be right, why don't I navigate into the cave, around the pit of vipers, past the deadfall, and onto the intellectual treasure?
And in fact, I read past your first statement and liked the rest. See how that works?
;-)