It doesn't have to be exactly mathematically correct to improve readability. Most of your points are basically "it doesn't look right to me", which is fine, you probably shouldn't use this, but that doesn't mean it isn't useful to other people.

>Don't be fooled. Just because you can make your editor look kinda-sorta like math, doesn't mean it actually is math.

So what? Doesn't make it wrong... this is just window dressing, which can be very helpful sometimes.