I have a few pipes I plan to sell. I was considering including my own grade for how well each smoked for me. Still not sure if I will or not. If I call a pipe 7/10 of a smoker, will that make any sense, or and difference, to anyone? Really, why should it? A lot of new smokers prefer, by my standards, huge airways, while I cannot stand them. My point is: where do you draw the line that doesn't fully inhabit preferences and arbitrary judgement? Is that helping a buyer? Hurting a seller? Wasting everyone's time?
I will say, though, that I do wish I knew if a pipe has been modified since leaving the maker's bench or the factory floor. To me, that is crucial information. Has some new smoker decided to open the airway like a McDonald's straw? Have they filed the inside of the stem? I recently...maybe a handful of months ago...purchased a pipe that has me convinced someone filed the inside of the stem and really screwed it up. I'm very familiar with this maker, and I have never owned any stem that is shaped like this in the airway. "I screwed with this pipe and am now selling it." I'd like that to be a common thing to know, right along with measurements and weight.