Because people are scared including myself even though I've distrusted some users.

Most people will do like this, if they see someone is doing good, they will include them on their list. But, if there's a high ranked user especially campaign manager doing something controversial or they think it's bad for the forum, they will choose to silent instead of distrust them.

Why I mentioned campaign manager? because it might hurt the campaign manager's feeling and cause them to get less chance to be accepted in campaign. You could say you don't care with rust list while accepting campaign participant, but people will still play safe.

Distrusting high ranked user when you're still growing is like killing yourself, instead of getting backup from other high ranked user, they might choose to silent too because they're scared.