Another moderator (not necessarily a 'manager' per se) for that campaign should at the very least be brought on - if they can afford to spend whatever they're spending right now, they can afford to pay another person to check posts.
If YoBit cared. They launched the campaign several ties w/o a manager and only brought yahoo on board
after the campaign started.
Seems that the problem is going to be less severe. Yobit decreased the maximum number of eligible posts to 10 per day. Spammers will likely make fewer posts.
Here is the post made by Yobit account.
Update: limit from now is only 10 posts / day