Hi,
Since today, some users have the role "SpamHunter", this allow them to move the spam messages to a hidden board.
The list of special users is, in no special order:
telemachus
craigevil
gnudude
Absent Minded
Jackiebrown
saulgoode
lolanoob
They are not moderators, they are just helping out to remove the spam. And the only admin privilege they have is being able to move posts between forums.
Next step is improving the forum spam filters, but we always will have some spam that pass the filters.