Free RP Live Streams - Scam?

Hello, so' I've come across some "free rp live streams" lately in youtube, that are giving RP codes ever 2mins\5mins\30mins and so on. Those streams are only asking for sub + like + share, nothing that may be dangerous. So, my question is, how can it be a scam? They dont ask for password\email\username, and the codes are appearing in the livestream - all you have to do is to go and type them. What can go wrong? Thanks! I'm sure your answers will help other people too.