Most people agree with you. I never finishes s5 and don’t plan on it. The show received too much hype
Just like with any other 'successful' or 'unsuccessful' shows it resonates differently with this and that group of people. But I have heard that the writing by the Duffers got worse from the previous seasons. (I somehow finished due to me wanting to know about what happened to Jane/Eleven.) And they focused too much on Promo tours and such.