We should just fix this stuff for future versions, enforcing this on a case-by-case basis wont be effective.
With factions, we probably wont even need to give away free planets, or if we do, they will be ones controlled by the faction anyway, and merely assigned to a new clan. Planetwars is simply too open to this kind of account-style exploiting right now, it needs to be a closed system where new accounts add nothing to the system other than what they earn by playing..