Online forums often have rules that say "Discussion of illegal activity" is prohibited. By this, they want to prevent users from using the forum from doing things like planning crimes, or (in the case of a game) sharing ways to cheat.
However, the phrase is really too broad.
Taken literally, a user could not ask if something that happened to them was illegal, or if a venture they're planning would violate copyright. A gamer could not explain why a certain trick was prohibited - even if the game had been repaired so that the trick no longer worked.
I understand the sentiment. An article of "scams to avoid" is also a list of "scams you can try".
What's a better way to say "Planning or instructing on how to commit illegal activity is prohibited, but informing on how prevent or avoid illegal activity is allowed"?