There were ~trends similar to what appeared early in TikTok.
For example, early TikTok had the Boss Walk.
Sora had no big content trends split into many micro trends in some established ~universe.
An AI video trend on Instagram as been Han from Tokyo Drift with different cars. People still want to share those on the platforms they are already locked into with their friends.
Well, that stuff goes viral because it’s fun to imitate, all the dances and challenges provided a flywheel to get people creating more content, it’s fun to make the video.
If I see an AI video and my options to participate are… prompt another AI video? What’s the point