One minor advantage which wasn’t so relevant in 2008: 80 character lines are much easier to read on a smartphone. This is especially true for Safari on iOS, which always seems to make bad wrapping / sizing decisions with plain text. ETA: thinking back on it, several years ago I switched from 120 characters to 80 specifically because of this. I don’t have a car, so I read a lot of code on my phone while taking public…
Took me a second to realize ETA was "edited to add." I was very confused on what an estimated time of arrival meant, here. :) I'm surprised reading on a phone is common. Not at all something I would want to do. I'm assuming largely read only there? Makes me curious if the CWEB idea of styling specifically for reading has extra merit in that flow?
I do not want to type / create on my phone though, certainly not code, or even sign up for stuff / submit / do applications on phone. Makes me a rarity though.