im not too sure how its calced, but i would assume that it is because he [wooly-wool] has enough high trust users with trust in him? Or merit is the influence?
I'm talking about the numbers here:
https://bitcointalk.org/index.php?action=trust;dtviewE.g.
peloso: -9
(wolwoo is out of DT1 this month due to the lottery)
Which is simple: DT1 inclusions minus DT1 exclusions, no merits involved.
Farming inclusions ("you include me -> I include you") doesn't seem like DT1-worthy behavior - and to be fair they did earn quite a few exclusions - but there are still users who include them and the vast majority of DT1 members don't appear to care. Ok, -99 is probably unattainable but -50 should be a no-brainer.