Once was peculiar. Twice - over a week later - is downright disturbing. The Flat-Earthers are defacing bridges and walking trails in Colorado Springs. What is their motivation? Spreading their faith?
Okay, I actually got a chuckle out of this graffiti. I have met serious Flat-Earthers. However, I have it on good authority (William Shatner aka Captain Kirk) that the earth is indeed round.