And I quote:

"When one griefs a settlement of Havana (griefing being defined as actively destroying 5 or more blocks that are not owned by the destroyer *or placing 5 or more (non-reinforced) blocks on land that is not owned by the destroyer*), the griefer will be pursued and pearled by the Red Army. Then, the attacker will be held in prison for 168 hours. The attacker must then repair all griefed structures wholey, while giving 2i for every 10 blocks destroyed or placed during the attack. Placing reinforced obsidians blocks gives a worse punishment, with 2 diamonds needing to be paid for each one placed. Placing other reinforced blocks gives a slightly lesser punishment, with 1 diamond per block needing to be paid. If an easily destroyed is reinforced (dirt, as an example), 4i must be paid for every one placed. All griefing attacks and the resulting judgments are up to the discretion El Presidente Failure to cooperate will lead to indefinite imprisonment."-ZaneTNT

If this is how PersonFromMars and ZaneTNT (Read: Havana) think, then you are all fair game. We are not dealing with reasonable people here.