When advertising the service, the benefit to Reddit users could just be
Sign up here and forget about it. When you make a post on a subreddit with a Lemmy equivalent, we will post it with your Fediverser Lemmy account and let you know. Any replies from Lemmy users will be forwarded to your Reddit post.
We are curating a list of official and unofficial Lemmy communities for each subreddit. By signing up, you are likely to get replies from helpful, kind, and like-minded users on Lemmy; many of which who migrated from your subreddits to the Lemmy communities.
You can learn about Lemmy passively and migrate when you’re ready, or just benefit from the further reach.
Also @rglullis, if you have a community where people can talk about the project and help out, I’m sure there are people here that would be interested!