My wife (Kallisilya) and I will be playing from the same IP Address, though we also sometimes use a VPN. We help each other out a bit and will discount heavily for each other but we are in no way intentionally cheating/abusing rules - Please do not ban us or I will cry. Lots. Also, if I got Kalli banned she would do unspeakable things to me...

Update, 10 years later:

Kalli's and my daughter now plays Mara! She started her account yesterday (2/4/22) and plays as MiniParsnip (don't ask!).

It is unlikely all 3 of us will be on at the same time.

Thanks!