You are not wrong. They don't do this because they make money from the scammers. I have posted about this before. See here: https://news.ycombinator.com/item?i

You are not wrong. They don't do this because they make money from the scammers. I have posted about this before. See here: https://news.ycombinator.com/item?id=35191971 https://news.ycombinator.com/item?id=35191971