(unrelated to above) I'm reluctant to flag
this answer as spam. The article was written on 29 May and the answer was posted on 30 May. I found no evidence of to indicate that the answerer is affiliated to that blog. Moreover, they have ~2k reputation on
Stack Overflow. But they haven't tried to fix the post since yesterday (I assume that they saw my comment since their last visited site 3 hours ago and I commented 23 hours ago). So, I assume this is NAA at least.