There are better ways to hide. From experience (I work in security), the ones I would use are (individually or combined):
- Have the VPN set up in my router using OpenWRT (the R7000 is great for that) and drop all connections when VPN disconnects (with a script).
- Rent a VPS on a botnet friendly host that accepts Bitcoins (i.e Hostsailor).
- Then do all my shady stuff from the VPS or even better, configure Tor and proxychains on the VPS then use proxychains when doing anything on a remote host.
I think the guy was just lazy and preferred convenience.