I think "quality mountain days" is the wrong term.It looks like someone is trying to jump onto the "in-term"
jargon bandwagon to attract a younger and trendier group of punters
They were usous this "in-term" at least a decade ago... So not jumping on any and wagons. Not sure what they next part of you statement means either. It's for people who want to go on and study to get their ML not go on a guided walk...
Quality mountain days is the correct term to use here, we've all had what can be described as junk miles going up the same peak via the same path several times, that's not a quality mountain day.