I don’t mind tipping but I think many forget that tipping comes from (they think) To Insure Promptitude, and not just because you got your food/service on the same day.
Tips should imho be for service above and beyond, you pay $500+ to be guided for a few hours and he doesn’t produce results I doubt a $100 tip is in order, you can go out with a buddy and not catch fish.
On the other hand, a $100 tip for a trip that netted you a personal best, taught you a few tricks and had a guide do everything he said he would may not be enough.
So for me, I tip on how the service was carried out, sometimes more than 20% often less.
As a friend once said, Tips are not an entitlement, well, unless you live in Minn…:)
Al