https://bitcointalk.org/index.php?action=trust
If you just have "Default Trust" in the list, BA should show as Negative Trust.
Not necessarily. I show them as trusted due to the link I mentioned above. I believe anyone using the default Trust depth setting of 2 will show them as trusted.
EDIT: I dropped a line to philipma1957 asking if he would consider removing his trust rating for DyslexicZombei in an attempt to resolve this trust situation.
EDIT 2: philipma1957 was kind enough to remove his trust rating for DyslexicZombei and now BA's trust is showing negative.