That thread wasn't the Day 1 post about cryptocurrency either. That would be https://news.ycombinator.com/item?id=253963, which is even more interesting. If HN had a hall of fame, https://news.ycombinator.com/item?id=253999 would surely belong in it.
[1] https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
Of course that Day 1 post doesn't reflect the HN discussion since then, and current comments don't either.
But more small-sample-size anecdata would be to look at recent comments:
https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...
Of the 20 most recent comments, I'd say 12 are negative, 4 are positive and 4 are neutral. (Your comment showed up in my search and I counted it as neutral.)
Try Dropbox or even Digital Ocean for a more loved company/idea.
People reach for the handiest hammer, but it doesn't follow that the hammer is driving the hammering. Ethical concerns are the best hammer, of course, because then one's own motives are unimpeachable; but failing that, you'll see comments about the business being shitty for other reasons—"it used to be good but they've been declining for years and I can't even use it anymore" is one, and "how is this a viable business, look at those financials, doesn't anybody care about profit anymore god this world is insane" is another.
I don't believe Dropbox threads are generally friendly to Dropbox anymore, and I'm pretty sure Digital Ocean has been on the rack here too. Today's thread was a noticeable exception. Most S-1 threads are pretty cranky in general.
Source: Day 1 HN post -> https://news.ycombinator.com/item?id=599852
If you have a truly revolutionary idea, expect the conventional wisdom on this website to be extremely negative.