No, I set it one for each device, then I never touch it again. So I'm am the third group that you doubt exists.
I don't want to fiddle with it. I read text on my phone, I have a preferred size to read, I shouldn't have to change it more than once. The few sites which end up too big or too small I read begrudgingly. Can I even set font size per site?
Pinch zoom doesn't work because now I have to pan left and right for each sentence?
I'm totally with Karellen on this.