Hi Gordon,
It is not my Message Board, although I help out. I think that the other discussion can be cleaned up now as you did the decent thing and removed the offending material. We cannot control what people say though we do impose limits within our guidelines.
The contents of the forum, The Glass Encyclopaedia and The Glass Museum are all copyright. But a simple request to use material is often received favourably as many of us are dedicated researchers and writers who like to receive full credit for their efforts, as well as determine what can or not be used elsewhere.
In any case welcome to the board, I am sure this incident is quickly forgotten and we will be glad to help you out if you need it.