10 people all have the same jigsaw. An 11th wants to create a copy. So the 11th person asks the other 10 to provide whatever pieces they can so they can copy them. It’s just a distributed way of assembling something rather than making a 1:1 clone of something.
Seeding is just the act of making your copy available for others to copy from. Leeching is where you throttle/block other people from copying yours while taking copies from everyone else. You’re leeching off others and not reciprocating.
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