I get asked this question a lot, because I love many traditional Japanese cultures, but not anime. First of all, I don't hate it, I still respect it, but it's simply not my cup of tea.

I often find it to be overstimulating and sexualized. someone said it's like food with too much salt, that perfectly describes it for me. It's just too over the top sometimes. The sexualization is also off putting. It's a constant distraction from the plot and undermines the rest of the characters and story.

I also don't like the voice acting style, where it is again overbearing, especially for women characters. That's not what people sound like. It's way too high pitched and trying way too hard to sound "cute".