Maybe that's how Lemmy detects crossposting but there is a visual mark of the crosspost in the interface and I have access to a link to the post in the other community that opens in my instance rather than in another instance. That is something very practical that make Lemmy crossposts more than posts with similar content. And that is something I didn't find in Piefed.
curious
I was mistaken. Lemmy only detected automatically the link when title, body and external reference where the same. It did not do it when the title and body was the same on posts without external references.
First case
https://jlai.lu/post/13228928
https://jlai.lu/post/13228821
Second case
https://jlai.lu/post/13228938
https://jlai.lu/post/13228935
So... I made sure to federate !forumlibre@jlai.lu to feddit.online. I joined it then done the same test : A crosspost from Lemmy to Lemmy with no external reference but a text body and still no crosspost is picked up by Piefed
https://feddit.online/post/166043
Here is another 4-days old post, this time with an external ressource crossposted from Lemmy to Piefed.
It gets picked up as crosspost by Lemmy but unfortunatly not by Piefed
https://feddit.online/post/165962
Watching it from Piefed, I have no way to see that it match a post in another community as it doesn't even refer to the original post using hyperlink.
Here is a 4-days old post that I just crosspost from and to Lemmy
https://feddit.online/post/165936
It is not pickup as crosspost either.
Hi @elena@calckey.world !
Thank for this article. I look forward to reading more from you.
You said that you're instance calckey.world only has 54 members. It use to have more, but about a year ago the admin asked us to move to sharkey.world as he no longer wanted to host Calckey. It seems like he has kept both domains at the end.