Link redirects to: https://en.wikipedia.org/wiki/1989_Tiananmen_Square_protests

> Please submit the canonical URL. Avoid link shorteners.

https://news.ycombinator.com/newsguidelines.html

Supplying an alternate link to circumvent a paywall or network routing issue is well within the rules of HN. You’re being pedantic. Who was harmed by the URL specifically? It was clearly and unambiguously labeled.