I think Square Enix should look into possibly using Easy Anti Cheat for XIV

[DumdogsWorld]

....

I mean, to be fair, FFXIV is software and software is infinitely malleable if you have the understanding to do so. If people really wanted their combat markers back for statics, it would be child's play for a 3rd party marker overlay to be made. Hook D3D11, extract the various orientation and position matrices of the camera, implement some kind of editor, and use something like the Steamworks API for separate, peer-to-peer networking without passing around IP addresses.

Square Enix encrypting their executable and process memory would be just another gunshot in the war. It wouldn't end - people would just improvise.