Screenshot of text "Sign in to access user reviews.": https://files.catbox.moe/d1ogky.png
It used to be possible to read User Reviews of movies on IMDB.com without being signed in. (That's one of IMDB's best features!)
Now, the User Review pages state, "Sign in to access user reviews."
Personal opinion: I really enjoyed reading reviews as a signed-out user before. Is there an effective way to give Amazon feedback on this?