When it comes to legality, we tend to err on the side of assuming good faith here, and only prohibit questions that are clearly on the wrong side of the law, the terms of service, or the EULA for the software in question. (Do note that we specifically prohibit things that ask "is X legal?" as we are not lawyers/law experts and can't provide legal advice.)
This means that outright discussions of piracy, EULA/TOS violations (multiplayer game hacks, MMO gold cheats, lagswitching, etc) are off topic, but most of the rest of the legal questions surrounding gaming we leave alone. For instance, emulation and issues with emulators are considered fine and on-topic. We're even allowed to link to abandonware sites.
I'd say the fundamental difference between something like "person pirates game" and "this game may contain unlicensed copyrighted content" is that while we can sometimes easily determine if an action a gamer can take is or is not in violation of an agreement/law, there's no way for us to say that a particular game is following the law or not, or even what laws apply to it.
For instance, if it's determined that Minecraft is using a patented algorithm that they didn't license in Estonia, should we disallow any Minecraft questions? It might be against the law in Estonia for Mojang to distribute it there.
When Mirror's Edge was released, a trademark lawsuit was brought by Tim Langdell of Edge Games, alleging that EA's use of the name was infringing. Should we then have disallowed any questions about Mirror's Edge until the suit is settled? It was possible that EA was breaking the law by calling the game Mirror's Edge. It could be argued that by bringing attention to (and potentially causing sales of) Mirror's Edge, we were encouraging this potential infringement.
We're gamers and we answer questions about games. While we don't want to become a place that encourages illegal activities among its members, we also shouldn't be concerning ourselves with whether or not the game publishers/designers/coders/etc have followed the letter of the law.