I have noticed, as I am sure the admins have, an increase in spammers hitting this board over the last couple of months.
May I suggest a policy of posts from *new* users to be vetted by admins until they reach a certain post count.
This sort of policy has been used in other forums successfully, and I have used it myself and found it not overly burdening to the moderators.
In fact, it seemed to reduce moderating time, as mods did not have to deal with the plethora of users reporting spam posts.
Is this something that the admin team have considered, and might you entertain the idea?
I, for one, find the posts of spammers in this forum quite annoying.