I trust that everyone here can protect their letters from "unauthorized use" within reason. I have no problem with that.
However, I do take issue with Greeks who worship their letters to the point that a nonmember can't use a pen or umbrella, or even drive a car that has the Greek letters or org's name on it. To those Greeks, I say, "Get over yourself; it's not that big of a deal"
That, IMHO is outright idolatry, and at that point, you are not protecting your letters, you are worshipping them almost as if the letters were a god itself.
I suspect that at least one poster in this thread (one of the most outspoken ones at that), is worshipping her letters and is curious why everyone else isn't doing the same.
Of course, that's just my opinion. I could be wrong.
*But I doubt it*