I am with akots here. These plans are just exploitations of the current situation. It is allowed, but definitely not fair. Let's wait at least until the 20 turns of gpt payments finished. The final ruling is, in my opinion, already a huge punishment to C3B.
We must play honestly. Think of the situation that the other 2 teams hear that we invaded C3B when they weren't allowed to defend themselves. We would get the lowest reputation ever, and will have lots of problems in the next round; if we even get there.
Let's keep our reputation in mind. The plans suggested so far are going straight into my conscience, and I can never accept this cheating/exploiting from our part. Let's keep the game alive!
Of course we can build up an army with the gpt we receive, but we should never benefit from the fact that we may declare war, and they may not!