Mathematicians have a relatively fluid relationship with notation. Since higher math is constantly introducing new abstractions, or applying new techniques to old abstractions, new notation is introduced, or old notation reused in a slightly different way in a large percent of papers that are influential. I think mathematicians would happily admit that.

That said, it does bring me back to a math class where a professor, after realizing he needed to introduce a subscript, to a subscript, to a subscript of something that had both a subscript and superscript already, made a comment along the lines of "please excuse my poor notation."