It was good before but from last few years this whole trust system turned into a big joke.
theymos said around the time
trust exclusions were implemented that those who give negative ratings to those who are not scammers will not be in the Default Trust network.
Today, users who regularly give out negative ratings to their enemies who are clearly not scammers, and who otherwise regularly give negative trust who can in no reasonable way be described as a scammer, are regularly not only added to the DT network, but will receive additional inclusions by those on DT1 when others exclude them.