Does anyone use a VPN to subvert the Netflix household device fencing?

AFAICT, if a Netflix account owner sets up a VPN for their household, then anyone sharing the account who routes their Netflix traffic through that VPN would appear to be accessing Netflix from that household's WAN IP address.

Is anyone doing this? Is it really that simple or are there more challenges?

EDIT: We get it, you like torrenting. Let's keep comments on topic folks.