The idea is that if someone really acts sketchy some people here are trying to prevent a scam, instead of adding neg trust after the scam (when the money is gone already.)
Earlier this week there was a scammer that wanted to buy coins and also get a loan. I replied in that loan topic to warn everyone that it was looking really sketchy. After that he still managed to scam someone for
BTC0.5. If I added neg. trust, then maybe I could have prevented that scam. I actually felt bad about it but yeh I wasn't 100% sure so didn't add neg. trust
So I guess maybe it is a good idea to add neg. trust when you are "only" 70% sure or whatever.. at least scams can be prevented.
A neutral comment option as warning might be interesting too tho.
BTW I do not know you or your posts, so I am not implying that you are a scammer, but I am sure Tomatocage thinks you acted sketchy and might be able to prevent scams like this.