Instead of addressing the very real problems with usage of Tor, they try to pick holes in the 94% figure from cloudflare (which isn't actually very important), and go on to cite a study by cherry picking stats: https://news.ycombinator.com/item?id=11405101. They don't mention that it explicitly states something which backs up cloudflare's position:
Tor exit nodes were far more likely to contain malicious requests
and even:
Risk averse companies may wish to block all Tor traffic
The article then goes on to suggest that it is perfectly reasonable to use the word 'block' to mean showing a captcha - in common usage block means block - deny requests, not attempt to determine if a user is human with a captcha or some other method - that's not blocking, it's annoying and potentially pointless, but it's certainly not simply blocking users and it's disingenuous to describe it as such.
All of that adds up to a response which seems to be more interested in scoring points than finding a solution for legitimate Tor users. I'm not sure I'd describe it as immature, but it's not a very constructive response, to an article which went out of its way to be Tor friendly and propose solutions. It would be much easier for cloudflare to really block Tor traffic, they would probably suffer very little from doing so.
Possible it's tone, but also given the relatively low volume of voting, and it's unclear to me what if any steps HN takes to reduce abuse and fine tune community comment policies, it's very possible that something else is going on. For example, some users appear to have comment histories that are highly irregular; one comment suggesting Snowden should be invited to return to the US without any chance of being behind bars or worst, and in another appearing to state that the US has not overstepped their rights; which is possible, though strikes me as bit odd; 100% sure my comments to some are a bit odd, though do try to respond if a direct statement is expressed.