This is something I would like to see IF people making listings can't be bothered to tell which format their tiles are in the original listings. Some do...you see some listings that clearly note that they're Intellijel format or Pulplogic format. And then, quite a few don't.
Frankly, what I would prefer to see is something like XODES's solution: a universal-sized tile panel with large U-cuts for screws instead of the little holes one normally sees. They did that right! If this could become the de facto tile panel standard, not only would it be convenient, it would put the final nail in this tile format dispute.