Hello everyone, We unfortunately have to close the !lemmyshitpost community for
the time being. We have been fighting the CSAM (Child Sexual Assault Material)
posts all day but there is nothing we can do because they will just post from
another instance since we changed our registration policy. We k...
I'm a bit confused, how does locking down a single community help?
Are the spammers really just focusing on one community instead of switching to the next after it gets banned?
I do hope there is an IP ban option, so someone can't just use the same IP again to create an account on another instance and post CSAM from there. Obviously I do know about VPNs, but it makes it a tiny bit more difficult to spam in large amounts.
Most people don't have static IP addresses, so banning their IP will only stop them temporarily. Then whoever gets that dynamic IP address next will be banned too. Then there's CGNAT where 1 IP address can have up to 128 people using it at once and the address changes even more frequently.
We're talking about temporary bans here, which do work against spam. Private users do have dynamic IPs, but at home I think I've had the same IP for years. They don't wildly switch them around.
On second thought the IP is probably not federated though, so if there isn't a common IP block list which instances subscribe to it won't work.
MAC address is a Level 2 addressing system (OSI model) and will not leave the local network / stay within the broadcast domain. The web browser will not expose this kind of information to a web server.