identity might be more important on some projects rather than others
they have a profile and can access it by tapping on their username in the menu.
I actually thought the number of clicks was pretty high but noticed it was higher on enwiki suggesting some projects might care more about this sort of thing. I suspect a lot of this is due to "oh what's this new thing"
How do we know they're switching between beta/alpha/stable frequently?
I am making this big assumption yes and I don't know this but I'm alluding to the fact that logging what people do on the settings page might be a useful thing to do. Personally I'd be very surprised if use of the toggle images on/off feature is significant. I would actually like to kill this if data allows a reason to. This to me is a feature that browsers should have - not websites.
I like the idea of making 'random' easier to get to - I would certainly use that a lot for testing. It bugs me that I have to always open the menu first.
https://gerrit.wikimedia.org/r/#/c/87427/ might interest you then
-- Arthur Richards Software Engineer, Mobile [[User:Awjrichards]] IRC: awjr +1-415-839-6885 x6687