"anything that gratifies one's intellectual curiosity." is the guideline. You could argue it's intellectually interesting to see the artefacts generated out of

"anything that gratifies one's intellectual curiosity." is the guideline. You could argue it's intellectually interesting to see the artefacts generated out of a cultural shift in a nation. Personally I think a deep dive into the meaning of some piece of ostensibly trivial pop-culture and what that means for the country it was produced in is pretty interesting. Then again, I'm not exactly a 'hacker', so ymmv.