@damon As a “newcomer” myself I found the article, linked below, from The Electronic Frontier Foundation, informative. In particular, this excerpt is why I use Mastodon but not Bluesky:

“ … However, it is developed unilaterally by a private for-profit corporation— Bluesky PBLLC— though it may be imparted to a web standards body in the future. Bluesky remains mostly centralized."

What’s the Difference Between Mastodon, Bluesky, and Threads?

The ongoing Twitter exodus sparked life into a new way of doing social media. Instead of a handful of platforms trying to control your life online, people are reclaiming control by building more open and empowering approaches to social media. Some of these you may have heard of: Mastodon, Bluesky,...

Electronic Frontier Foundation (www.eff.org)