Good to know... I can see I have a lot to learn!
I cut mostly hardwoods, but around here most hardwoods are not all that hard. Oak (4 types), poplar, elm, ash, hickory, walnut, maple(3 types) and sycamore are (mostly) it for me on the regular.
When green I don't consider any of these regulars to be very hard, but dry hickory, or dry ash, is hard on my cutters for sure.
Dry Osage orange and I reach for my carbide
I have to sharpen my chain after every full day of cutting, and I do touch up throughout the day.
You mention profiling for different woods; I am assuming this is making the top plate cutter edge less acute? Larger file? holding the file up a bit? School me...