I have posted about it a few times, but I'll keep this somewhat short.
The trust system is trying to do a few things and there are groups that feel it should be done differently.

But, in my view, the trust system should be used for trading / dealing with people and letting people know if you can TRUST them to DO WHAT THEY SAY.
Did you send them BTC and they shipped the miner / collectable token / whatever. Then positive trust.
Did you send them BTC and they sent you the 100% worthless shit coin / eth token / whatever then you know what. They did what they said. Either no trust / neutral trust or positive trust.
If you walk into a car dealer and say "Sell me that rusted out crap box in the corner that does not run for $230,0000 then you know what. That is on you.

Scams are not moderated here, and people tend to take that personally. Sorry, we as a forum are not you mom, do your own research. If you send out money to some unknown place on the internet and get ripped off, that's on you. Not the trust system.

Now people here have been using the trust system to peruse their own views of justice or what is right or wrong.
It's not going to be stopped. So you really have to look at what is posted.

Links to deals not complete, links showing that someone said "A" and then did "B". Are all good.
If I tell you that if you buy this token for $.001 and it's going be $20.00 tomorrow and you believe me. That's yet again on you.

With the "Shitty person" "Meritted a scammer" comments, if you post them and I see it, I tend to ignore you from that point on. I may give you a ~ in my trust list. I should probably do that more, but that's on me being lazy.

-Dave