It's really hard, though, because you'll always get people who will feel entitled. In the distant past I've released things and explicitly put in the readme something like "This is provided in the hope that it will be useful; I do not have time to support it and will not accept requests for help, but will consider merging patches that fix bugs or add useful functionality".

And yet I still got people who would ask for help with it, or file bugs without patches and then get angry when I wouldn't help them.