I don't agree with this: - static responsive add bug: Positive. Users will not get the bad version of Y. On the contrary, it's negative because the maintainer

I don't agree with this: - static responsive add bug: Positive. Users will not get the bad version of Y. On the contrary, it's negative because the maintainers of X will update Y and introduce the bug to their users (I'm assuming they don't thoroughly audit the source of Y each time they do a version upgrade). Also, "unresponsive remove bug" should be given more weight since it's more likely to happen IMO.