I created an instance, and was thinking it as a normal self-hosted server where I can do whatever I want with no worries, and learned in a bad way that it's on a federation and we still have to follow some rules.
I have a lot of AI generated stuff that I wanted to make visible on Lemmy, and made a bot to upload all of it in a community.
So far it wouldn't create a flood, but then I subscribed to it with my lemmy.world account. I wanted to test it, and I wanted the community to be searchable on lemmy.world.
This last step is the one that messed up. Lemmy's new feed apparently doesn't impose any limit, and a new server publishing thousands of posts in a few minutes flooded lemmy.world's new feed.
That wasn't my intention and I apologize for that.
They were posted from a different account than this one, right? Pretty sure I just blocked that account so I didn't see more than the first page or two.