I don't really get why someone would add a Jr. Member after buying an item.
There are a bunch of collectibles manufacturers who are trusted regardless of what their rank is in here. (Smartpaymint isn't one of them, though...)I hope that current DT members look into these feedbacks and fix them, either by countering them or by asking the DT member who gave the negative trust to remove it "if it's a false accusation with no solid proof"or by untrusting / tagging him as a last resort.
Alrleady working on it, and already receiving threats. 
As long as the participants are open minded, it should work out okay.