I'm saying one shouldn't charge to 100% without a good reason. It takes several hundred 100% depth of discharge cycles to degrade the battery to 80%, so you should spend those wisely. I personally plan on just calibrating one or two times a year and that's mostly it. Even for a road trip, going to 100% won't do anything for me as superchargers are closely spaced enough for me to do 80 to 20 percent easily. I did go up to 90% a couple of times when my hotel didn't have destination charging and I wanted to "fill up".
To me, good reasons are:
1. Battery calibration
2. Needing the range to get to the next charger
3. Away from easy charging for a bit
If one actually has good reason to charge to 100% daily, then an EV is probably not the right choice.
Did you watch Jeff Dahn's presentation? It's educational and should put a lot of your questions in the proper context.