Its a self feedback loop which is increasing CanaryInTheMine's trust rating.
For instance, redsn0w sent a positive rating today
CanaryInTheMine 150: -0 / +331(331) 2014-12-13 0.00000000
I trust CanaryInTheMine , he is an honest an reputable user!
CanaryInTheMine added redsn0w to his list which resulted in another trusted feedback for him. I think this is a flaw in the trust system which leads one level 1 member to improve his trust rating.
What is the problem if I trust him ? I've left him the feedback only because he's an honest person.