If you work for Betfair, let's say for example, write articles for them, there's no way Betfair would allow you to give away any information to punters that could lead them to make profits from Betfair. That would be a conflict of interests with Betfair and they would not let you work for them any more. Be careful who you listen to. If they work for Betfair, maybe, just maybe, they're trying to make money for Betfair. Stranger things have happened.