[Paracompact]

Could've been a good rule: Unless the XY problem is so severe that X is impossible, you can't heckle or post Y solution unless paired with X solution.

[ceejayoz]

X in an XY problem is almost always possible, like "how do we make ship canals and harbors with nukes" (https://en.wikipedia.org/wiki/Project_Plowshare) or "I'd like to amputate my hand to fix a hangnail".