The nearly perfectly symmetrical shape makes me think its due to the electromagnetic fields when current is passing through the socket to whatever is plugged in, but I have no idea why such a small amount would have such a dramatic effect on the mold.
Or the socket faulty wirings heat the wall and make it less mold friendly.
Or a loose connection is arcing slightly and producing ozone gas
The nearly perfectly symmetrical shape makes me think its due to the electromagnetic fields when current is passing through the socket to whatever is plugged in, but I have no idea why such a small amount would have such a dramatic effect on the mold.
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? British plugs are fake?
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