Wait for it...
So far today we've had 4 "new users" join geocachingmaine.org. All from the same ISP's we've had spammers from before. As usual, I've alerted Rick to them, but we'll probably get spammed before he gets around to deleting them.
Is there anything we can do to prevent these guys from joining? Block a set of IP addresses? They're all coming from the same bunch:
Asia Pacific Network Information Centre (APNIC)
PANAMSAT (this one they've just started using)
RIPE Network Coordination Centre
What can we do?