It wasn't a real office. They were all his accounts and that was just his excuse to try explain why there was dozens of accounts using the same IP.
Gotcha.
When I was a mod, there was a function to reveal duplicate accounts by IP addresses. Many fail to see that coming.
Only admins have access to that function so a lot of abuse will go unnoticed but sometimes people overstep the line which forces some accounts to be looked into.