I think I recall seeing an election for the Politics & Society board and I think it would be beneficial to do that again for these boards. Unless there is some reason why we are not adding moderators? AFAIK the budget is there.
It's down to the management to determine that, if there is room for more moderators on the payroll. It is definitely necessary as the battle to combat spam intensifies.
Also the member selected would have to be willing to take up the task, which is not an easy one.
(maybe theymos should implement the reporter badges with a few perks to encourage more reporting).
That would be really helpful, and it can target the lower ranked members who constitutes a bulk of the members of the forum, if you can have them actively fighting spam, for signature space or posting permission, the state of the forum would be that much better.
For higher ranked members I can't think of any befitting rewards for now. And my ideas?