Since yesterday, there were 33 registrations. Some spammer must have figured out a new trick.
I would like to require faith and jurisdiction to be filled in. That would weed out a lot. The current software doesn't appear to support making a custom field mandatory, though. We'll see what I can do.
Some spambots are real persons in Third World countries who are paid per post and who work in sweat shops.
When these normal humans reach 10 posts or whatever the board has set to send private messages, then they spam everyone with PMs.
They must have spent hours sending individual PMs to members and mods alike.
I was the recipient of several spambot PMs.
One spambot sent out more than 100 PMs before they were caught when members reported them.
However, they all posted from the same IP address, so a check revealed that there were 25 spambots using the same IP.
Thus they avoid detection in their initial 10 post moderation which other boards have implemented.
Those PMs could be Nigerian scams, drug advertisements, cosmetics, or clothing stores selling supposedly Indian or Pakistani apparel (American style skirts and dresses).