I also get what Linz is pointing with the "I don't play by your rules". You know that all of art is up to the artist's creating [that art] ideas. I can totally understand that in the world of comics/manga that realistic or semi-realistic anatomy is important. But, IMO, if comics/ manga originated from comic strips (aka the 'funny papers'...cartoons)...then 'bad' anatomy isn't really a big deal. <----I could be wrong about the comics evolving form the funnies...
Sometimes the over-exaggeration you see in manga/ comics actually make that work a whole lot better than it would be if it was done in a realistic or sam-realistic style.
By the way ya'll manga comics have bad anatomy off rip. You know those big eyes that probaly drew a lot of folks to the style? What about other stuff like dainty little hands & feet? Perhaps the slightly oversized noggin? I mean I could go on, you get my gist.
I WILL say this, however, every art form has it's foundation based off of realism so...if you're doing figures...even abstract...you do need to understand exactly what body part(s) you're deforming should look like before you do it.
..and while we're using Picasso...did you guys forget about Dahli?