[Cooper turns to see the newcomer and seems cheered up that he has someone to talk to now. He smiles as he turns towards him, still scraping off what he can with a pen.]

Certainly is. It's a message, all of it, and not just the words themselves. It's deliberate choice. Did they mean to scare us? Make sure that we notice the words?

[He shrugs, but turns back towards the map as if it would provide answers right then and there.]

Maybe it's both.