These will not be The Answer but hope others will follow suit ....

Plumbing: the new tile was thicker than old floor finish in 2 of the 3 bathrooms & they didn't raise the flange nor use a thick or double wax seal, so it leaks at times ... copper dam contains it is a solution ... haha

Boys will be Boys: learning to hit the target needs a spill over catch on floor akin to pee stop products ala
http://rb.gy/t95cx

Religion: Feng shui dictates the use of such a device when the toilet faces the incorrect cardinal direction; however usually these are copper decor arrows

Disgusting: pee may be one way to get a fast desirable patina onto copper, then removed for use/deecor elsewhere http://rb.gy/6ixg8

Electric: always getting shocked when using the toilet, copper anti-static strips applied http://rb.gy/rknma

Medical: copper kills bacteria, fungus, et al. that may linger near toilets and in roof shingles kills black algae, creating a cleaner look

Decor: glued to tile, these copper strips married to the bottom of custom mats to prevent them from moving about when serving as toilet surrounds

Aliens: better than pyramids as protection from aliens when pants are down and vulnerable

Occult: the Devil made them do this

Absolute said:

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Did not Google, but I did ask about it. Will see if anyone gets it right.

One clarification. Only installed at two of the three downstairs bathrooms.

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Vastu. All about balancing energy or some such. Like Indian Feng Shui.

Wow. I've never actually seen a dikfer on a toilet before.