Oh my gosh honey! don't you know anything about the first rule of jungle? kill or be killed. they think that they're now the lions of this jungle.
Administrator wants to have moderators to address the spam issue, if you don't want to pay and don't trust them enough to make them staff.
Adding them to DT requires no money and trust. having red trust members would ensure them to come back with new accounts and have more traffic.
Where do you get to have such an smart admin?
Please fix your grammar.
Also, I don't quite know how the forum benefits from new members coming in. Remember, it's members. Not traffic. If accounts get negged, they will be left, and new accounts will be created. This does NOT result in a higher traffic density.
Also, if it was all about traffic as you say, why wouldn't the admins make account sales illegal then? Use your brain, don't be a dumbass.
Thirdly, signature campaigns that TP joins are paid weekly or fortnightly. He can leave whenever he wants. The problem persists if he leaves a campaign without announcing it, joins another one (or tries to) and then if he is denied, re-updates his signature to the original campaign.