Everybody can give positive, neutral or negative feedback to anybody.
The main thing is: if you're a newbie (your current rank), nobody will take your negative feedback serious.... It's a shame, but that's just the way it is. I'm a senior member, but i'm not in DT, and i seriously doubt any feedback left by me would be taken seriously by at least 50% of the members here.
If you have a strong case against somebody, it's better to start a scam accusation (read the sticky notes), if somebody on DT (default trust) reads your case, and agrees with you, there is a reasonable chance he'll leave negative feedback to the scammer, and most (if not all) members will take his/her feedback serious.
Why should a one post Newbie with zero credibility been given the same credibility of a Hero, (for example), with 50 verified and successful trades?
That's why you work yourself through the ranks, BUILDING credibility as you trade and interact with the community.
I for one, read others feedback along with references. If there are no references, I generally ignore the rating.
You're right, but what i was trying to say was that IF the OP was just an honest person with newbie status AND he was scammed, leaving negative trust using his newbie account would be ignored by most (but luckily not all, thanks to people like you who actually read the references) of the forum members because of his current status. In this case, this would be a shame.
I agree that credibility has to be built, there's nothing wrong with that, i just found it sad that if the OP actually got scammed, he couldn't make a real impact on the scammer's account by leaving -ve himself, he actually needs a more senior member to do this for him in order to put a dent in the scammer's business.
BTW: i'm not proposing a different trust system. I think the current system is a bit flawed, but i don't have a better alternative, so i think it should stay the way it is.