Sounds unfair right? Yes it is. Using unauthorized third-party programs like the land hack are obviously not allowed by the publisher of ArcheAge. Abusing it or simply using it in ArcheAge can lead to a ban but, I don't think, those who use this land hack are afraid of getting their accounts banned from the game.
Seriously, accounts that were found using any kind of unauthorized third-party programs in ArcheAge should be immediately banned and wiped from the game. I know it's only a temporary solution because they can always create new accounts. T_T
For those not familiar with ArcheAge (which I highly doubt), it's a free-to-play fantasy-themed sandbox massively multiplayer online role-playing game published in North America by Trion Worlds.
You can learn more about ArcheAge at http://www.archeagegame.com/en/.