And Hacker News comments are any better? The core issue becomes: who do you trust? If you read the comment and blithely accept what it says without thinking about it, you'll fall for any scam that comes along. You need to examine the ideas within the comment, compare it with other information (from hopefully different sources) and then come to a conclusion as to it's veracity. It's part of being in a society where freedom of speech is a right (a US centric viewpoint, since that's where I'm from).