Hi Both
It's really an uphill battle, we've changed the ability to post to wait approval of your user last week, but after approving a small batch of users, some bots made it through.
At this point we're considering actually not allowing new signups until that person logs a support ticket, because just one bot (of the 4 that caused havok over the weekend) posted 89 posts. The other 76. It's difficult for us to maintain at all times due to our other obligations, but we've cleaned everything up again.
We're looking at ways to make this better, and we do apologise for the spam - know that it pains us as well!
Kind regards
Ruan