This isn't about more mods, but forum policy. Without changing that Staff can't go around making up their own rules and they need to follow the ones in place and theymos generally wants as much freedom as possible, and whilst that is generally good, it also obviously comes with downsides and people are often willing to abuse that freedom. Some users do get away with far too much here but Staff generally don't get involved unless it breaks forum policy, so if you have evidence of harassment and extortion then you should report those messages to Global mods and/or open up a thread in Reputation or Scam Accusations, but there's only so much Staff can do about that. Even if certain users are banned they will likely just create a new account and start harassing you again so banning isn't always effective. I have suggested new enhanced features where users/businesses can moderate their own threads how they like and can even permanently ban or block certain users or user groups from even posting in that thread, but in the meantime you can self-mod a thread and make your own local rules prohibiting certain users from posting there. If they break those local rules then users can be banned.