It's more than just a work/personal split. Even at work, having "development" and "production" tailnets so that things like testing complex ACLs, inhouse apps that use tailscale via its API, etc. are possible without having everyone on the devops team create an unmanaged/non-company email so they can create their own development tailnet, and then deploy a bunch of company IP using this rogue account.

It's a pain point.