Quoted from snaroff:On the "lack of integrity" scale, this sounds really, really minor. The best way to see if someone on Pinside deals with integrity is to read their reviews! Just like Yelp! People get to weigh-in on their experience dealing with someone.
Bad news there: https://pinside.com/pinball/forum/topic/can-not-leave-feedback-unless-it-s-positive-now
IMO, mostly removes the usefulness of reviews, but sometimes the lack of reviews can be telling.