If lemmy created a community the same name as the username when someone signs up. You could follow a lemmy user and then when your on mastodon (once we’re federated with mastodon) you could see their self posts in their community as a mastodon post and vice versa.
So people don’t have to maintain accounts on random services. Personally, I’d quite like to see new posts from Lemmy communities in my Mastodon feed.
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Alright, I’ll bite: that’s just how I use the internet, you’re free to do whatever you want. Regarding your question, I’ve never seen a need to do that, so I’m not sure. Have you tried this yourself?
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