Regarding Twitter, Elon seems to like trial and error, right? That's how SpaceX developed their rockets - by trying new things and testing them frequently, to see if they work.
So with Twitter I think he's just trying to see what he can get away with. And if he can't get away with something then he'll just roll it back.
As for Reddit, I guess they saw Twitter trying to squeeze more money from their platform and thought "let's try that too".
Regarding Twitter, Elon seems to like trial and error, right? That's how SpaceX developed their rockets - by trying new things and testing them frequently, to see if they work.
So with Twitter I think he's just trying to see what he can get away with. And if he can't get away with something then he'll just roll it back.
As for Reddit, I guess they saw Twitter trying to squeeze more money from their platform and thought "let's try that too".