I don't leave trust anymore unless I PERSONALLY took a large risk on buying without escrow or a large dollar amount thing(s)... Sometimes I don't even bother because I don't think it's anyone else's business what I buy or sell here between parties I personally know and talk to frequently.

One adjustment I can think of - (maybe 3 lol) - Ratings - Have a buy/sell/trade option that's mandatory to tick off - or if it's just "General Feedback" too maybe?
I always do neutral feedback if I feel a need to leave a rating for a trade that doesn't deserve a "brand of trust".
Neutral trust is the beach umbrella I lug around to contain 80% of the spectrum from negative to positive.