matrics said:
Yeah, but there are occasions when I deal with the same person twice... and I can't give feedback each time.
Actually you should be encouraged to leave a feedback for a user after every transaction. All feedbacks, unique user or not, are recorded and displayed in the feedback profile.
Topic here is the trader rating "score" that is displayed in the postbit. This was previously based on total feedbacks while since the system upgrade it has been based on unique user feedbacks. We have left it this way for a couple of reasons.
First, it better guarantees the integrity of the feedback system. If you came across a sales thread started by a member with (50) feedback, you might assume they have completed many positive transactions with other members. However, with the previous system it was possible for someone to conspire with a friend or two to repeatedly rate each other to achieve higher trader rating scores.
B20, I can look at your (43) score and see that you have conducted transactions with 43 other members that were impressed enough to leave feedback for you. To me, this is more impressive than a user having a (43) score for transacting with only 10 other members, or even worse with one fake account. Scoring by unique users eliminates most incentive for users to try this. If you see a high score, you can be better assured that this user has conducted many positive transactions.
And a slightly selfish reason is that there is less staff work involved. We don't have to spend as much time investigating claims of feedback fraud. We still track down duplicate and false account of course, but we don't have to try to verify how many transactions actually took place between users. The trader rating system is based on a system of honor, so we don't have any method of immediately verifying actual transactions.
One way to look at the trader rating score is "how many other member can vouch for this person"?