I have lots of torrents downloaded through transmission, which I would like to continue seeding through i2p via the XD client, without having to re-download the files. How do I “move” my seeding to i2p? Do I have to upload the torrents to an i2p torrent tracker, or can I avoid that?

Would you recommend this in the first place?

Sorry for the stupid question folks, help is appreciated, even if not specific to these clients. Thanks in advance!