Ladyboy isn't ONLY an offensive term. In fact, It was news to me to find out it WAS offensive. I think of it in the Thai way. http://en.wikipedia.org/wiki/Ladyboy

It's not unreasonable to assume the My Chem dudes were thinking the same way -- what with them not being known for sluring ANYBODY much less along gender or sexuality lines.

And when someone DID say they were offended My Chem apologized and changed it -- which was gracious and appropriate.