I am almost sure there is one or more groups of users who act for their own profit and cooperate to destroy, damage and scam bitcointalk.org community.

There are few of full and senior members included (I wont name any) there are other users included (users who have money) and they cooperate to make profit by stealing, scamming and they can influcence trust of other members (by giving them negative trust)

They put positive trust to each other (members of this underground group)

Easy example how it works:

Lets say there are 4 users who are part of underground group

User A, user B, user C, user D

User A has positive trust 10
User B has positive trust 20
User C is spammer, usually positive trust around 0
User D is "boss", it is mainly person who has money

From time to time they make some scam. Lets call it "example scamcoin"
User D gives money to fund "scam project"
User C - spams forum (may be more users who spam),
 - He create new user (Scamcoin) ...he spams forum with new user
 - With other accounts, he keep the thread alive. These accounts are mainly members, full members, senior members, they chit-chat at new created topic and keep it alivve.
Users A and B (users with high trust) do nothing for now ....

When they scam someone there might come User X, who would like to inform community about scammers or possible scam they try to do or already done

When underground group notice their scam may be revealed by User X and his posts, threads or comments, User C (spammer) starts spam his thread, starts counter-attack, he has to damage name of User X, he has to damage his reputation, as its his job.

THen !!!!!!

User A, B and other members of underground group comes to place. They will give negative trust to User x. As he has negative trust, community will find him as a untrusted and his thread, posts, comments has 0 value

This is how underground group at bitcointalk.org work, they scammed community several times, they act as a "solid" and "trusted members" they act like they want to "help community" but opposite is true.

They are financed from previoius scams, they are financed by users who have money, they act like a real thieves and crimianls in real world.

Thats why trust level at bitcointalk is totaly useless, as it is easily influenceable, users with high trust level can "kill" anyone....