> It certainly does.
No, it doesn't. Yes, there are general safety regulations in any country, but there are no hard rules as to what "satisfactory" or "fit for purpose" means.
My analogy was contrived to make a point. Of course serving actual feces is not "satisfactory". But I imagine that you can extrapolate my analogy into an infinite number of possibilities where someone who once enjoyed certain services or products can find them not "satisfactory" anymore. That is a commonplace situation in any marketplace, and it is perfectly valid for the person on the receiving end to be upset about it.
The one hole you can poke at my analogy, which I anticipated, is that there is (typically) no financial transaction between users and developers of free software. But my response to this is that a financial transaction is not a requirement for the social contract to be established with users of any product or service, regardless of its distribution or business model. Those users can still expect a certain level of service, and understandably so. This expectation exists whether the person is a customer or not.
A closer analogy might be a community kitchen, or garden. But it really makes no difference to my argument.
The free software philosophy is agnostic to how software is monetized. It's true that it is more difficult to do so than with proprietary software, but it's certainly not impossible. Many companies have been built and thrive on producing free software. The crucial thing, regardless of the business model, is to treat all your users with the same amount of respect, dedication, and honesty. The moment you stop doing that, don't be surprised when the community pushes back. That's on you, not on "entitled" users.