
That's odd, since virgin don't limit download with the 50 meg service, and only throttle upload in areas with faster uploads
to be fair Virgin's "limit" is at peak times, when you're probably going to find things are a bit slow anyway. I'm on Virgin, and downlod more than that most months, mostly overnight, and I've never had their warning letter.
Virgin are pretty up front about their peak time monitoring, and afaict have only recently come up with a figure for triggering their sending of a letter.
(for disclosure reasons i work for a company who work for virgin, but have no interest in promoting their services, i'm just giving my experiences)
there's ebid. a friend is doing a lot of selling on there, and hasnt had any issues. or if she has, she hasn't whined at me about them the same way she did with ebay.
It is masked but always present. I don't know who built to it. It came before the first kernel.