I don't live in the US, so my ISP doesn't really seem to care what I torrent, but the megathread vehemently recommends to always use one. Since VPNs aren't cheap and I'm on a strict budget (wouldn't pirate otherwise), is it really that dangerous to torrent without one?
I got one of Hetzner's "used" servers with 60TB of space for $45/mo (they had smaller too, but I'm building hella ratio). Just make sure you encrypt. I also only do private trackers through it, which definitely helps with ISP snooping. If I was going to use public trackers I'd probably still use a VPN or I2P.