I love it, at least with the right group, because while you basically never get reliable information, you do get a large amount of it. Some will be contradictory, some will match, most will need to be expanded on. You piece together narratives matching the evidence, poke holes in these narratives, offer alternative explanations, determine probabilities that multiple people are both speaking the truth. It's not that nobody knows anything, instead everyone knows something and will need to decide when and what to share with others. You might be able to get someone killed with a random accusation, but you're just as likely to reveal yourself to be a liar to someone in the process.