Hello @viterbo, there is no regulatory organ on steemit it is decentralized. Steemcleaners is a team of volunteers who try to prevent and diminish spam! And they also reward contributions from you, if you report some real bad spam in their abuse reports form.

Further more, take a look at @steemflagrewards which is another team that rewards you for "meaningful flagging with detailed explanation of reason."

Feel free to ask more.