Open source maintainers have no such responsibility. Anything you get for free is a gift, and giving a gift doesn't create any ongoing responsibility for the giver. Take it or leave it.
The only limit might be publishing something that is actively intended to do harm. But I can't imagine a plausible example of that...
And if you're intentionally doing any of the things you listed above, then you're not a maintainer. That simply is not what maintaining means.