I've been running RPI-based torrent client 24/7 in several countries and never experienced that. Eats a few TBs per month, not the full line, but pretty decent amount. I guess it really depends on the country.
I'm in the UK with Virgin Media on their 1Gbps package, going through multiple TB a month and I'm yet to be throttled in any way.
I'm in the UK with Virgin Media on their 1Gbps package, going through multiple TB a month and I'm yet to be throttled in any way.