My IP has multiple people that plan on playing 161. I know that on 159 a handful of people that got forced holiday were multi-accounters so I decided to send Evony a preemptive letter asking for clarification. I sent the following:

"First off, I'm required to pick out a world but in reality this is for 161. I've been told before that you need to be notified and/or give your approval for multiple users on the same IP so I'm curious what further information will be needed.

I expect to have three additional people playing - probably two but that third person may jump on and off. I don't know their email addresses, but I can get them if necessary."

The response I got was:
"Maybe three users will be allowed with the same IP. Please have a try, thanks."

...

"Please have a try, thanks."
I understand in MANY situations it's not wise for a company to give exact answers because it may come back to haunt them. This one was insulting though.