It's really not a misunderstanding if you fail to communicate that at all! Every bit of what you said made it sound like you all swooped in from reddit (given none of the mods I've seen have any interactoin with any other lemmy communities) to take over people who were already posting content.

Maybe that's not what's happening, which is great! People are obviously confused, so you're not doing a good job of explaining yourselves or what's happening in any event.