why are not more people doing this?

btw.
just for fun.

i do have a e2-micro instance on gcp us west1. supposedly free tier.

i vpn to it from my shit computer at home – 2gb ram debian 12 32bit atom..via wireguard.

and port forward 25, 80, 143,443 from the fixed ip of the gcp e2 micro instance to the vpn lan ip of the atom.