That so many businesses have chosen to misspell "blue" does not, and cannot, make it right. As I explained before, and you missed ... two or more wrongs do not make a right. (I'm not sure why your mother never taught that to you, but consider yourself informed now.) I guess there are a lot of people who would lose "Are You Smarter Than a 5th Grader," since 5th graders have generally learned how to spell "blue."

As for being "obsessed" with it, I explained already that it does people a disservice to be faced with an intentional misspelling. Intentional misspellings are "bad" because the people who come up with them, learned better back in 2nd grade. Intentional misspellings are a transparent marketing ploy, and the last thing the world needs more of.

I'm not sure why you choose to defend stupidity, but you do.