Sorry for the belated reply - pvg is correct - that's still a paywalled submission, and users aren't supposed to submit links in text posts like that (this is in the FAQ: https://news.ycombinator.com/newsfaq.html). I appreciate that you were trying to be helpful!

This is one of those unfortunate cases where HN's rules conflict (one, that we want original sources; the other, that we don't want hardwalled URLs). In such a case we have to compromise. The best compromise seems to be to find a readable article that contains the significant information from the original report.