The main solutions we have today are IP ban + VPN blocking using a database of known VPN subnets and adding them all to the firewall, and a similar fingerprinting technique which scans their folder structure of certain system folders.
The main solutions we have today are IP ban + VPN blocking using a database of known VPN subnets and adding them all to the firewall, and a similar fingerprinting technique which scans their folder structure of certain system folders.
Regular IPs can post freely
VPN or mobile IPs (blacklisted) must pay for a key ($20/year) that allows posting from blacklisted IPs. Key is good for posting from one blacklisted IP, locked for 30 minutes, so users cannot share keys. That way, you can ban the user by their key, if their IP is public.
It's not a perfect solution but it seems to be the best they've found for such a situation so far.
EDIT: Well, I guess the tribe has spoken. Pretty surprising. I think y'all are just assuming you'll always be the ones with the "good" IPs...
Blocking IP ranges by country or ISP is pretty much always going to have to exist as long as certain countries and ISPs turn a blind eye to abuse.
Even with as poor a solution as IP blocks are, it's the best we have and alternatives seem worse.