I told somebody I know who knew about Reddit’s API changes about Lemmy. He has a master’s degree in Computer Science and works as a software engineer. But then, he told me that it’s too confusing to get into, even for someone like him. This is great feedback and I hope that these issues will be fixed in the coming months.
I cant even imagine that Lemmy could handle one million users. But there will probably be ways in the future, after all Mastodon managed it somehow.