Are we allowed to have multiple accounts in the first place?
Yes Dave places no limits on these things. I'm sure some of us who use scripts (I actually haven't used mine this round yet, but then I was in the middle of completely reworking them last round) are probably running 5+ accounts to try and get a early game boost. The growth in this game is exponential so if you plan on being a war like empire a early start can be very important.