I doubt WotC wants you calling Pathfinder "D&D" as that weakens the brand and moves D&D one step closer to Kleenex/Aspirin status (losing the trademark due to widespread general adoption of the term as a category).
I doubt Paizo wants you calling Pathfinder D&D as that obfuscates their brand and hides their contribution.
Pathfinder is a fork from 3.X. As a supported fork, I expect it to continue to evolve and increase the differences from its antecedent. It is much easier to specify what fork of the hobby I am discussing so as to avoid unnecessary confusion.
I doubt Paizo wants you calling Pathfinder D&D as that obfuscates their brand and hides their contribution.
Pathfinder is a fork from 3.X. As a supported fork, I expect it to continue to evolve and increase the differences from its antecedent. It is much easier to specify what fork of the hobby I am discussing so as to avoid unnecessary confusion.