I'm probably being too judgemental, but I don't get how people are so nonchalant about mutability and potentially destructive commands. Even in a Github Gist I'

I'm probably being too judgemental, but I don't get how people are so nonchalant about mutability and potentially destructive commands. Even in a Github Gist I'm scared enough to set -euo pipefail, put half a dozen checks before removing a folder...