My favorite is that a large German ISP was reported to encourage the use of Bittorrent. It should help balance up- and download traffic of end users. Reason was said to be that the copper cables, once planned to transfer analogue voice, suffered from nowadays usual HF transmissions causing the skin effect to concentrate currents in a small area near the cable's surface. The concentration was said to be so intense at 4GHz+ that copper atoms were moved out of their lattice position. The predominant download caused the drift to amass in one direction, degrading signal quality. The ISP had to reverse the most heavily affected cables' direction including a lot of expensive ground digging, so that the same effect restored the original atomic lattice. Process had to be repeated every few years, the report said. Absolutely hilarious.
Ciao, luker