I'm not familiar with the "council republic" concept. A quick scan of search results is interesting, because the concept seems a lot like "federalism" which has been used in the United States, since its founding, but the search results are dominated by examples from places like the USSR, China, and North Korea. I'll have to learn more about this.

The one thing that occurs to me is that we would have a very hard time implementing democratic voting here because it's so easy to create alternate accounts. I guess the councils would have to be small enough that it's possible for members to know one another personally.