I can follow mastodon and threads accounts on my bluesky timeline using one of many bridge services: https://fed.brid.gy/
I can merge mastodon, bluesky, nostr, and threads one timeline using one of many third party apps: https://openvibe.social/
I can unsubscribe from the default bluesky moderation service and choose one run by a third party: https://bsky.social/about/blog/4-13-2023-moderation
The only differentiator for X is the content, and that's an easy choice.