This tool lets you migrate your own posts from any subreddit to any Lemmy community you want, I made it because I couldn’t find anything else that did it the way I wanted to. I’m super happy how it turned out, I managed to get 9 years worth of posts over this way…
The GitHub link shows how to use it in case you want to!
I updated the README to add a similar warning, thanks! https://github.com/peterwilli/lemmemovetolemmy/commit/91b3ecb9f1f8e270e76057c85b8a7f75402375d4
Thank you for adding the warning 😁 I bet many lemmy admins and mods appreciate it!