What is our stance on questions that can be used for legal and illegal purposes? Are they on-topic or off-topic?
The other Stack Exchange websites that I am aware of where this issue has been discussed have the following policy: ~ "we are not lawyer, if in doubt, leave it Stack Exchange employees to decide':
Do we want to add some additional self-censhorship on Academia Stack Exchange?
Example 0: Ways to get free and legal access to research papers as a researcher : "legal" depends on the jurisdiction, and as a result some legal methods could be illegal in some places.
Example 1: How often do publishers sue researchers for copyright infringement for putting their articles on a personal website? -> knowing the answer could motivate researchers to violate copyright laws.
Example 2: Where can I obtain the content of closed MOOCs? -> knowing the answer could motivate students to obtain educational materials, which in some cases could be illegal.