Out of scope, yes. But it sure would be nice from a more abstract perspective. Right now content flows in one direction. Lemmy->Mastadon, but not vice versa.

This could be a good thing, or a bad thing, depending on whether you are a content creator or content consumer. If you're creating content, a post to Lemmy will have a wider reach (huzzah!). But if you're a lazy lurker and want to check fewer streams, then you sign up to Mastadon and get both (huzzah!).

Anecdote from history, for comparison.

Back in the late 80s, early 90s, when OS/2 and Windows were competing for marketshare, this was a choice that IBM made -- to make a Windows compatibility layer on OS/2. Technically, it was a masterpiece, and increased the number of programs available to OS/2 users. Why choose Windows when you can choose OS/2 and you can select from the best apps from both ecosystems! Except it backfired within a few years -- developers stopped developing for OS/2 entirely, instead targeting the Windows API because they could reach both platforms with it.

I suspect that Mastadon being able to draw content from Lemmy, and not vice versa, is a similar thing here. But I'm unsure if it will help or harm Lemmy.