In the bread case, you seem to use the term "backing" as a synonym to "what gives this value". Or what is your definition of "backing"?
Yeah I don't think we disagree really. My post was really based upon the perspective of an investor who cares only about keeping value as money, and doesn't care about sinking ships or the like. I think this is one of RT's main audiences in this regard.
I think the definition of "it's not backed by anything" is less important than the intended meaning which is usually along the lines of "it could become worthless" which is a red flag for investors especially fund managers, and this wouldn't be incorrect either. A lot of pro-Bitcoin folk rightly laugh at that of course, but from where I'm sat that is exactly the image of Bitcoin many investors have, and one that has been carved out by the media, along with all the black market rhetoric.