[Benji_San]

Personal use as in you're not selling bandwidth to a third party. There is most likely no problem running a mail och minecraft server, but they definitely don't want you selling bandwidth to your neighbours or hosting your video streaming service on it.

[diminoten]

Frankly, what's the problem with selling (let's call it giving for now, that keeps this simpler) bandwidth to a third party? It's just bandwidth, why does the source or content of the packets matter?