Sometimes I see signs and banners like Sale-abration or Kar Kare, Kidney Kars, etc. The other day I was walking by a building and saw a small box that said EZ KLEAN rodent killer on it. Just last week I saw a store called Sav Mor (can I buy a vowel please?) Maybe the girls who wrote notes like "UR a QT Pie" in junior high have a future in marketing. I wonder when they started Krispy Kremes, if they experienced any opposition with the spelling of the name. Today there would be none. Toys R Us took it a step Further by not just using a letter instead of a word, but they also turned it around the wrong direction!
I'm sure the Internet and copyrights have only compounded the problem. I imagine many people want a name that is already taken so they just resort to messing up the spelling. I think that is one reason why many businesses spell their name wrong. They either don't want to infringe on the copyright of another business or they want to piggy back on the confusion. If I changed the name of my blog to ESPM, I could bank on all the sports enthusiasts with big fingers that would accidentally be directed my way.
I suggest you lump the practice of intentionally spelling words wrong into the category of drugs and remember to just say no. Spelling words wrong is acceptable if it's an accident, but when it's intentional it really sux.