Speaking as a mathematician who wrote one of the papers cited there, the concept isn't very interesting at all. It is the sort of recreational mathematics that we enjoy playing with and is fairly natural but it isn't the sort of thing that is going to lead to deep insights or structural mathematics. The bar of being interesting enough to have papers written on it is really low.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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