I don't think it's IPs that reddit bans. Maybe ipv6. One reason I think that is even if you use a VPN (for different IP) they can link your accounts and ban them. I'm not sure exactly how they do it; cookies on your machine seem like a likely culprit, but there are lots of evil fingerprinting things that they can do.
That works accross platforms, but different accounts on the same platform are linked through IP. Just FYI.
If Reddit bans on an IP level, any company can.
I don't think it's IPs that reddit bans. Maybe ipv6. One reason I think that is even if you use a VPN (for different IP) they can link your accounts and ban them. I'm not sure exactly how they do it; cookies on your machine seem like a likely culprit, but there are lots of evil fingerprinting things that they can do.