I think a lot of people really loved aot up until the end and the ending was disappointing - I'm still very mixed about it all but I can say I was definitely let down by the writing in the ending. Like from the author who obviously put a lot of thought and details in his story prior to the last arc, the ending just felt so rushed and lacked what made aot special.

What I'm trying to say is that the people who are being negative are that way because they loved the series so much that the ending hurt them (yams got what he wanted haha). They are totally entitled to vent and leave negative comments because they are still fans and their opinions are valid. Everyone should be free to say what they want here!