For the last point, why would you leave a negative feedback on someones Profile if you didn't trade with him ? If he scammed you then just leave a negative feedback.
There are many reasons you would for example if the user scammed anybody else, if it is a hacked account etc...
For hacked accounts & those stuff. I guess we need something like "reputation" (on profile too) to leave it on users . because they are separated things , each rank can give the following reputation :
- Full Member : +1
- Sr.Member : +2
- Hero Member : +3
- Legendary Member: +4
People would buy FM accounts and will do such thing many times. Better to remove FM from this.
~~MZ~~