I’ve seen some discussion on reddit and telegram about operators like 1PCT controlling a large percentage of staked ada and what that means for the network. I wanted to share some of my thoughts about that in this blog post https://www.prometheus-pool.com/blog/some-thoughts-on-network-centralization
For those who want the TLDR:
I believe that multi-pool setups (such as 1PCT) can use economies of scale to significantly reduce their cost per stake pool while retaining equal or better performance, incentivizing network centralization. One option for re-aligning incentives is to increase the influence of pledge to help level the playing field between single-pool and multi-pool setups, another consideration may be a minimum variable fee to help prevent some of the worst effects of multi-pool setups pushing margins down using their cheaper costs.
If you agree or disagree, I’d love to hear some of your thoughts!