I think the answer is that the community is awesome. So many people want to contribute so when there's a joke template that people can run with, it takes off.

In this case, everyone gets the basic idea (drugs are bad mmmmkay) and can find all sorts of fun examples. (Personally, I know Star Trek half as well as most folks here but even I could come up with something kinda worth a small nose exhale.) So, off to the K White we went!