I’m gonna repeat something from other post, but unfortunatelly, I find this a bit misleading. Other instances are at best second class citizens to your main one (or fourth class slaves in terms of UX access). (EDIT: case in point, after submitting this comment, I went directly to this post on lemmy.world and do not see it there. I’m not sure if it takes some considerable time to synchronize, but it furthers my point.)

And unless I’m missing something, the claim that you can “read and write” everything seems to be plain false - for examle, you cannot create communities cross instance. And while one rogue instance won’t take down the whole fediverse, it will take down whole communities on that instance and all the registered users to it.

That’s why when registering, I really didn’t want to go to any well-meant but extremely minor instances. The moment its maintainer gets bored, my whole acc would be nuked with him, and that’s where you’ll start seeing cracks in the fediverse idea.