The list includes only users who have at least one (negative, positive, or neutral) rating from a DT member, and/or have at least one DT-supported flag, and/or are DT1/2 members themselves.
If a user is not in the list then it should mean they have none of the above (i.e. trust color "black") but if you could get me some examples I can find out what's going on.
That makes sense, I just checked some users that couldn't be found and all of them have 0 feedback. Which means that if an user can't be found in this csv it either means that the user has Black trust OR it's an incorrect username/bitcointalk profile url (I'm thinking of a scenario where a bounty manager have a list of users and a bounty hunter provides an incorrect url or username) so gotta differentiate the two cases. To do that I'll do additional checking using theymos trust dump or Loyce's viewer.
Thanks!