That's a legal protection, it has little bearing on whether the creator 'owes' (in the informal sense) anything to the software's users/community. If the softw

That's a legal protection, it has little bearing on whether the creator 'owes' (in the informal sense) anything to the software's users/community. If the software isn't being sold, it presumably won't be legally required to be fit for purpose in any sense. The no warranty provided text is just stating this explicitly. (Usual disclaimer: I'm not a lawyer, this is not legal advice, etc.)