The largest rent I can ever imagine getting from terms which are in wide and common use is to use them to mean the same things everybody else means when using them. To me, it seems coming up with private definitions for public words decreases the value of these words.

I was trying to make concepts like forbidden and permitted pay rent - even in a world where there is no objective morality,

There are many words used to make moral statements. When you declare that no moral statement can be objectively true, then I don't think it makes sense to redefine all these words so they now get used in some other way. I doubt you will ever convince me to agree to the redefining of words away from their standard definitions because to me that is just a recipe for confusion.

I have no idea what is "straw man" about any of my responses here.