It looks like no matter what if the last feedback you receive is negative then you will either have a ?? ? Trust score or a negative score.
Correct. Your trust network is assumed to consist of people who are basically reasonable. So if any trusted ratings are negative (which means "this person is probably a scammer, watch out!"), then this should be taken very seriously. That's why a single negative rating can easily cause a loss of 100+ trust points in this new algorithm. And if the
most recent rating is negative, then this is a strong indicator that the person may have been running a long con which has turned into a full-blown scam.
If anyone is abusing this by reposting negative trust unnecessarily or giving out negative trust too easily, then you should remove them from your trust network.
@theymos what is the thinking behind increasing the numbers? It makes changes too much. Was it to increase the strength of DefaultTrust?
You'll get used to the larger numbers. DefaultTrust doesn't get any sort of advantage as far as I can tell.