Yup, Aaron Wiebe. They don't call them social media
influencers for nothing.
I've seen a few of these holes already this year. All have been marked with branches laid over or around them that would be lost if it snowed 6" overnight. Hopefully the cold weather will put them out of business around here soon. It's supposed to be hard to cut with a Nils saw beyond 10" or so, and pushing the floating piece under the rest of the ice gets progressively harder too as it becomes thicker.