I was confused to see why is the fourth number missing in the Trust of people.
Can't get a hold of this

And why do i see this Question marks with Red ink on this person's profile ?
https://bitcointalk.org/index.php?action=profile;u=148389
He used to appear light green if i remember correct
I assume BayAreaCoins is in your trust list and his rating is new. Hence, you will see that rating. FYI he is still green for me.
The code is : if(score < 0)
return ?? ? (orange)
Hence it returned ?? ?
??? is a valid score in the new algorithm.
Doesn't that mean if someone receives a positive and a negative rating, they'll go negative if the negative is newer?
If someone has 1 positive and 1 negative, then the time doesn't matter. They'll have a score of -1.
Examples:
Old -> New
+ - : -1
- + : -1
+ + - : ???
+ - + : 0
- + + : 1
+ + + : >=3
- - + : -3
+ - - : -3
- - - : -8
-snip-