The fact that Royse777 removed a controversial positive feedback is enough to say that the user is ready to correct their sent feedback and it doesn't mean that the user lacks knowledge of how the trust system works. Earlier we have seen many DTs doing mistakes while leaving negs and they worked on their ratings too and still are on DT1 so that's not a negative factor against them. Excluding someone from a trustlist too doesn't make them unworthy nor including someone (unless that person is a known scammer). Only thing that matters is their positive/negative ratings that are incorrect.