I regularly hit 4.7 gbps on a 5 Gbps line pulling files (usenet is usually faster than torrent, but the latter can be equally as fast depending on the torrent & how good the client software is). It's great to just grab an entire movie series in 4k Blu Ray remux quality in 5 minutes and go. No real need to plan ahead for anything.

Yeah, Usenet is crazy quick. I've saturated 10Gbps on Usenet before, pretty easily.

Torrents (as you mention) can be equally as fast. Well seeded, private tracker torrents can easily download at above 1Gbps (depending on piece size, etc).