This is the problem with decentralization. Some people are abusing and don't even care to harm others. Now i'm thinking that we really have problems making decentralization a norm.
It is all about human nature...as they say when the cat is away the mouse will play or is the other way around? Anyway, when there are no clear regulations (or shall we say parameters) there is a big chance that things would be just mixing up irregularly. In other words, people can be abusive when they know they can get away with it.
This is a clear situation when a little control has to be establish for the sake of avoiding anybody taking advantage of potential victims. We should be desiring a self-regulation system in order to protect buyers from sellers who are scam-minded otherwise we will have a big problem and reputations can be damaged.
Right but the scam in crpyto currency is coming often from the controllers not the end users, perfect case is this bugged out scam site waves which has some very serious issues. Look at this category only. hundreds of coins and ICO's and million dollar funraising for sites and business plans that have no chance of even turning a profit.