Bitcointalk is the only forum which I have seen that allows one to create alt accounts and even sell them (though it's discouraged). How does this forum benefit by letting this happen as it would be one person who will be creating and replying to the same topics most of the time and earn activity. I have seen people who create topics and answer their query themself and it's like they are suffering from split personality. I won't be surprised if the 493071 members may turn out to be just 100-150 members in total and most will be spamming the forum without wearing a Signature. These members don't even bother to get their positive trust removed before selling their account as it earns them more BTC.  Easy to invite scammers to buy their trustworthy accounts.