You're really coming off as an ass, nor do I think you comprehend what butthurt is (what exactly would I be butthurt about again?). Instead of responding with juvenile insults and caps lock rage, all you had to say to Jlee/Thursty was something to the effect of "Sorry my bad, should have asked first" and this would have all been done and over with.
To use your own example of a big corporation, try selling a shirt with the official Disney or Mcdonalds logo on it. You'll get sued up the ass for that flax, because its illegal. Not many people would have payed $20+ for a logo on a white shirt anyway, which is why I said you should have made a REAL shirt design.
Stop acting like you're the victim here, because if you can't realize you at least should have asked for permission first, then you're being completely ignorant to everyone else involved. Just admit it was an innocent *Can'tSayThisOnTV* up and everyone can move on, because by acting so defensive and cursing everyone out, you're making yourself and what you did seem much worse.