https://github.com/mary-ext/atproto-scraping

The number seems to double every few months. It's about as decentralized as Mastodon with its handful of servers controlling most of the network and a long tail of small and single user independent instances. The only difference is recovering from bluesky's official instance (bsky.app) dying is you would have to connect to a different Bluesky instance or convert your PDS data into a website, or port it to some other social media software like Mastodon. I wouldn't be surprised if there are already projects underway to make it possible.