Update: It seems an option for this already exists
max new accounts per registration ip?, however this completely blocks registration without notifying staff in any way. Would like to see this modified to put the user into an approval queue as opposed to outright blocking. See post 7 for more details.
Over at Stonehearth we got hit with a huge barrage of spam, mostly in Korean, early this morning. We just finished deleting 41 spam accounts, and blocking their IPs, as well as cleaning up the new posts (nicely flagged by our community). When going through the IP addresses we were surprised that some of the accounts had identical IPs, and even more surprised that Discourse didn’t flag these accounts in any way.
Looking through site settings, there is an option to flag sockpuppets. However that only flags them if 2 new users with matching IPs post in the same topic. Can we get an option to flag accounts the moment a new account is created with the same IP, ideally blocking the new account until reviewed?