None of it has attribution, all are selling ads.
Some are copying comments from the threads here and putting them down the bottom of their fake blogs also to give it some legitimacy.
It's a shame when people who write high quality stuff like this for free end up treated this way by digital parasites. It's not an easy problem to solve, either you lock it up and get no exposure or you get robbed.
His work will still be there years from now, the poorly proofread copies likely will be too.
I made that original comment in the last thread, it was only speculation but it's an easy, low cost strategy to deal with this.
Let it get popular on HN with no proofreading, it gets copied, then fix it in a week or two and keep the version more likely to stand the test of time.