After reading this change log, It seems that you are angry because you generate not enough money with your add-on Enhancer for YouTube.
As a developer, it's okay to get paid for the time you invest, but it was your decision to offer Enhancer for YouTube for free to the users, but after reading the change log it reads more like a menace to the users!
Be the way it is a great add-on, but after this change log here my note 1 star!