Maisypops (and Babybarrister),
Thanks. I think that if the badge is capable of conveying more that one meaning, then that's all the more reason for not requiring a person to wear it. However, my view is that the context makes it pretty clear: this house belonged to a gay man, therefore, the badge indicates support for gay rights and more. How much more is probably a rather involved and arid discussion that deserves Ockham's razor.
The key point for me is that wearing the badge = advocacy, and while I'd expect the life of anyone to be sensitively handled by NT, I'd also expect it to be objective. Tying it into a political objective, no matter how laudable, isn't objective and Mary indeed be giving a person's life an interpretation that it won't bear. Exactly what the badge advocates is by the by.