Number of users and popularity. Plus not being able to seriously discuss it on reddit due to them potentially banning the sub.

I'm excited for Lemmy and other federated communities, because it allows places to stay smaller while still sharing posts and comments. That should help stop the effect of a single community getting super high traffic. Plus there is no karma/score so there's less incentive to spam low effort posts.

Because piracy isn’t legal. For anything that can run afoul of the law, or bad publicity, or advertisers’ preferences, Reddit admins have to keep the content on a tight leash. Lemmy doesn’t have advertisers to worry about as it’s supported directly by users, and not being a for-profit company makes it somewhat harder for the law to come down on it (and if they do, the community can easily move). Really, it’s a fundamental advantage of federation.

I think it's because only the best pirates came over to lemmy.

I have learned so much in just this month from lemmy piracy posts. Keep'em coming! Rrrr!