I guess that makes sense it'd happen more in big buildings. The runs in most houses wouldn't be long enough to have a noticeable induced current without the electrician adding a few extra loops for fun :)
Thanks for humoring my skepticism, it's been interesting to think about how this would happen.
I'm assuming you're using it as swap so you can take advantage of the compression? Sounds like there'd be a performance hit, but maybe turning half your RAM into compressed swap is better than using an SSD as swap?