I must admit seeing Mozilla get worse and worse has also made me more cynical on behalf of Bluesky. And then there's the issue of moderation - I'm beginning to think that big ethical platforms cannot really exist, as there is no such thing as a perfect place to draw the line with regards to moderation.
Maybe Bluesky would be the most likely to succeed in operating a large online platform in a good way. I have just lost all faith in such platforms.