They could just block VPNs but how about a house/apartment with multiple reddit users? Coffee shops? Libraries? Offices?
This seems like it would come with a shitload of practical drawbacks, never mind the capricious nature of reddit bans in the first place.
Their ban reporting is straight up broken and regularly abused by botnets, this will make that problem even worse.
The wise and mighty FartsWithAnAccent has spoken.