https://www.comparitech.com/privacy-security-tools/blockedinchina/
Raddle didn't block in China, many websites and online game users requested the CCP block the website by The Great Firewall to prevent Chinese people attack.
(as the Taiwan No.1 meme)
https://knowyourmeme.com/memes/taiwan-1
Or some events like this: https://www.taiwannews.com.tw/en/news/3638174
And here is a Chinese website that anyone can post links on the international network and report to the Chinese government for the banning of The Great Firewall. Usually, the reason is "politics".