Over the past month we've been trialing a new way of of approving new account registrations on the forum that appears to have reduced spam dramatically.
The only downside of this new system is that new accounts are manually approved which can take up to a few days given the volume of new signups involved.
Shortly we'll be updating the forum software which might assist us in controlling spam further and much more efficiently.
Regular visitors to the forum and the moderators (who did an exceptional job keeping the spammers at bay by deleting 1,000's of spam posts) should notice the difference.
Even though it appears we've reduced spam dramatically, I'm sure some spam will still appear on the forum from time to time, but not nearly in the volume it has in the past.
Thanks for the suggestion and please keep them coming, we do listen!