Lots of bangers. Uplifting clips of kids seeing through American propaganda, and genuinely heartwarming moments of cross-cultural learning. 
You guys gotta stop calling it RedNote, okay? If we’re doing this even partially as an F U to our own US government, you’ve got to start calling it Little Red Book or just RedBook!
They could but they won’t, for the same reason you don’t see many people from mainland China past the great firewall. It’s just more convenient to use an alternative site.