Make it seamless for people to migrate. Duplicate comments/posts/vote API calls to Lemmy. Then they could just drop the Reddit side whenever they want, and users wouldn’t have to do any work. Most wouldn’t even notice the change.
Of course they’d have to keep the app up in the meantime, but I’d donate to that fund.
Definitely, but they should allow people to choose their instance naturally. We don’t want every user to end up in lemmy.world (or any other instance for that matter), decentralization is key, otherwise, at some point, it will end up exactly like reddit.