loppy

I think there’s just miscommunication about numbers here… if there are thousands if not tens of thousands of shows, I don’t consider 100 to be more than a drop in the bucket, let alone 20, and I don’t really care how “big name” a show is.

And again, I was saying all this is the context of OP’s “greatest sin in of anime”. Do I expect there to be more shows in the future that use this technique? Sure, but barring an art style fad for a year or two, I expect them to be few and far between. It just is not a technique that is at all indicative of what “anime” is or has been.

The TV Tropes page is about this technique is animation in general (and just because it exists does not mean it’s prevalent). They list at most 20 anime examples. That’s probably at most the number of shows I’ve seen with any kind of plaid at all.

I am not saying this technique does not exist in anime, or that Gankustuou is unique. I’m saying that this is not even close to “the greatest sin in anime”, and the VAST majority of shows use flatter color textures where this technique would not even be applicable.

“Many” meaning how many though? I think there’s no way I (personally) could come up with 100 shows that have this aesthetic, and I wouldn’t consider 100 “many” in this context.

The OP (Opening) is supposed to represent the best of the show

Why would you think this? Commercially, the opening is pure advertisement for the show and for the music in the opening. Artistically, they can do whatever the hell they want.

The greatest sin in anime is the texture of clothing. This is most obvious in the Count of Monte Cristo anime due to the art style. Basically if a character is wearing a robe or some other clothing that has patterns on it, the patterns do not move with the person. The pattern is fixed, almost like there’s a layer of nothing but the pattern across the entire frame, and the outfit is just "transparent.

Almost no anime do this, what are you on about? It’s a deliberate choice of art style, nothing more. And either way, why would this be a “sin”?