I'll try and be aware of that instead of doing it so to please others wishes.
If you're going to call them by designer names in the future, my suggestion is to make up your own or explain what you mean by it. It requires knowing your audience - your average person wont care, of course, and a community like Chaz will, I think... and it's not to say that's fair you have to explain yourself. But there's just such a vehemently negative response to designer names for many people that it's probably safer to explain rather than get flamed.