After 12 up / 0 down votes to this answer and no answers expressing a problem, I applied a historical lock to both questions. This should make it clear that these questions aren't acceptable here anymore, but won't break anything that may be linking to them.
I also cleaned up the answers to both questions.
I don't think deletion is appropriate, but I'm going to let the community weigh in before I take action.
The first question is averaging 20k views/year for its lifetime. The second almost 6k views/year over its life. They aren't good questions, but deleting them outright could potentially cause links to go 404, and that's a bad thing for the broader Internet.
I'd be in favor of cleaning up any negatively scored answers, perhaps even 0 scored answers, and then applying a historical lock. The closure and historical lock should discourage anyone from asserting that their question belongs because those questions do (and even if someone makes that argument, they would clearly be in the wrong) while avoiding breaking questions that contain something that likely will prove to be useful or insightful to other people who may find it via Google or (even more importantly) linked to from another site.