Possibly scarier than the fact that crap like this even exists is the amount of ecosystem aligned zealotry that you see even on places like HN, vehemently defending anti-developer policies purely because of the amount of personal investment in the ecosystem.
This is a pretty unnecessary straw man. There are a lot of people who defend particular ecosystems in spite of anti-developer policies for defensible reasons.
Instead of questioning the motives of people who disagree with you, how about a concrete example with citation? This comment sides with yours but makes the point better: https://news.ycombinator.com/item?id=14536374
Developers do some pretty shitty things. Lots of us using Apple stuff came from more open ecosystems and are here at least partially because Apple restricts what developers do.
My video game console is very closed. My phone is fairly open. The controller on my weekend project is a Raspberry Pi - very open. It's not a question of zealotry really.
I don't think it's so much the sunk costs that matter. It's the dividend you get back every day from that investment which keeps you hooked. That's what you don't want to lose.
I think his point wasn't that sunk cost are a myth, but rather that they shouldn't make you blind to the problem of the platform you're bound to.
Whether or not that's something that happens here or elsewhere can be argued and I don't necessarily agree with him, but that's where he was going with it I believe
