If I sign up for a torrenting site like torrent galaxy or something
That’s a public tracker/index. You don’t need to sign up at all to connect to a public tracker swarm.
and leave my computer running then will other people get seeded?
Yep. You can set bandwidth limits if your upload and/or download internet package is bad so it doesn’t interfere too much.
Or do I have to upload a file or can I just have it finished?
Hit and Run is considered bad manners and selfish behaviour. You can get away with it on public trackers, but private ones typically ban you for that. It’s called leeching. It’ll be based on your total upload/download stats, or your ratio in other words.
owenfromcanada@lemmy.ca 3 weeks ago
Different torrent clients have options for that. Most will seed indefinitely by default, but some you can set to seed just for a specific amount of time or until you upload a certain percentage of what you download.
original_charles@lemmy.world 3 weeks ago
Is that why so many of my downloads stop at 99%?
owenfromcanada@lemmy.ca 3 weeks ago
Nope, that’s a different thing.