Well yeah, because 5.2 is the default and there's no way to change the default. So every time you open up a new chat you either use 5.2 or go out of your way to select something else.

(I'm particularly annoyed by this UI choice because I always have to switch back to 5.1)

0.1% of users is not necessarily 0.1% of conversations…

What's the default model when a random user goes to use the chatgpt website or app?

won't somebody think of the goonettes?!