AMC’s policies should make moviegoing experiences more pleasant and customer-friendly, not the opposite. Want to share your AMC experiences at the website? You'll have to sign in and divulge all of your personal information and post your comments in public forums, making the process more complicated and invasive than necessary (bye-bye blank entry fields). You shouldn't have to join a website or sign up for anything to leave customer feedback, something most companies value, simplify, and privately communicate with consumers.
What a disappointing direction AMC has taken - this type of corporate greed and poor management will reflect in lost consumer base and detract from finances, not create loyal patrons. (Take a lesson from Netflix.) Support your local movie theaters and chains that have YOUR best interests at heart.