Thanks for the link back, I appreciate it!
One neat side effect of this is that if the microblogiverse backfills from the threadiverse, and vice versa, then you have in effect built a bridge connecting the two disparate 'verses.
We're not there yet — this step only exposes conversational contexts so that consumers (like NodeBB) can backfill from them. Neither Lemmy nor Piefed have signalled intent to consume contexts yet, but as it is a relatively new extension, there is no telling what may happen in a week, a month, a year... :)
Also rimu@piefed.social is pretty darn responsive and if you as (very) nicely that would go a long way.
> is that an issue for the Threadiverse? I thought all replies are collected by the host instance of the community.
You're not wrong about that. Threadiverse software (Lemmy, Piefed, and NodeBB too) use something called 1b12 to synchronize content between instances.
If you follow a community, you set up the synchronization from your server to that community from that point forwards.
This is similar, but not quite backfill, which is what happens if you follow a community mid-way and don't have any of that stuff from before.
Also you can't 1b12 synchronize with Mastodon, so that unfortunately is a dead-end, but you would hopefully be able to backfill from Mastodon.