@rarely the historical reports of issues I've read about are from mid-late 20th century in areas near high power LF/MF stations that would be in the nearfield - from the Wiki article
> absorption of radiation in the near field by adjacent conducting objects detectably affects the loading on the signal generator (the transmitter).
so it would be noticeable, and viewed as an undesirable thing. Harvesting (small) amounts of power in the far field would not cause issues.