> Long-term low-current electroplasticity, induced by the electromagnetic waves from the Arecibo telescope itself, may have sped up the zinc creep, it says. The report recommends that NSF offer the remaining socket and cable sections for study by the research community.

That seems a bit unlikely to me. As far as I know it was a radio telescope, receiving very weak signals, not transmitting them.

If it were such a major factor it would be present also in the guy wires of transmission towers, some of them emitting hundreds of kilowatts.