At least one side needs an open port in able to connect. So if your ports are closed, you can only connect to seeds/peers who have an open port. Opening your port ensures you can connect to anyone.
The size of the file doesn’t matter. Without port forwarding you won’t be able to use things like private trackers without running the risk of getting banned. There’s no reason to use a VPN without it if your goal is torrenting.
Note that Mullvad no longer allows port forwarding, which can make it harder to torrent effectively
Is it really that bad? I haven’t had any issues torrenting stuff with Mullvad, although I usually don’t torrent files above like 20GB
It reduces your available peers. You can’t connect to other people with closed ports, one side needs to be open.
It isn’t a huge deal with popular torrents, but it can cause problems with unpopular/old stuff.
At least one side needs an open port in able to connect. So if your ports are closed, you can only connect to seeds/peers who have an open port. Opening your port ensures you can connect to anyone.
It’s non issue, even with +80 gb files.
The size of the file doesn’t matter. Without port forwarding you won’t be able to use things like private trackers without running the risk of getting banned. There’s no reason to use a VPN without it if your goal is torrenting.