I second this, and it has been bugging me since people started talking about the blackout. I think the big issue is that the people organizing the 48hr blackout are the mods. These are the people that have invested the most into reddit, and they dont want to give up that investment into their subreddits. They don't want to leave reddit, and giving people an agreed upon alternative would be permanently fracturing their little fiefdom. They want to make a statement, and then for things to go back to the way they were, hoping that their tiny act of defiance makes a difference. The migration has to be led by users, but the issue of fractured lemmy communities is going to be hard to navigate unless lemmy introduces a way for communities to link together.