(this is about MANNEQUIN THE UNBANNABLE)
Everyone's saying to reset all passwords, and while I fully agree with this, I do think there's an alternative, but I don't know if it's possible. Anyhow,
Suspend ALL accounts. Yes. All of them, BUT, give everyone with an e-mail account a new verification mail. This way, most people will be able to just quickly de-suspend their accounts. For the people who don't have an e-mail, they can give a little mail to BMG to get their account unsuspended, but have to verify an -email in the meantime.
On the other hand, resetting passwords is so much easier and the people who lost their account due to the reset can mail BMG anyhow. Plus, they should've thought of resetting their accounts anyway.
Idk. This problem of bots keeps coming back and the only way it gets stopped is by resetting/suspending everyone and building it up from the ground. I guess.