I can't believe they milked an academic paper out of this.
I know people who have done this for years.
I know people who have done this for years.
The methods might be interesting, and if nothing else it seems like accessible material. If it is well written it could be a nice quirky paper to stick in a senior year undergrad course…
And, that people already do it doesn’t mean it is unpublishable. It is good to figure out why common behaviors work.