In this question the OP links to a nature paper that s/he is interested in re-typesetting. The link appears to be to an illegal copy of a non-open access paper that is available (presumably behind a paywall). Should we allow links to pirated papers or force people to link to the non-free version?
For some questions you might need to be able to see the paper in order to answer the question, but in other (e.g., this case) you might not need to see the paper to answer the question. Does this affect or decision?