@peoplearecute I couldn't say offhand, I'm not a Mastodon dev nor instance owner, although I'm reasonably certain a Mastodon account's blocked user list isn't publicly available through the API or others would have brought that up.

If you'd like to read further on what bsky's team is doing and why their refusal to do T&S will likely end up hurting people, I recommend reading Denise's thread (scroll up to read in full). bsky.app/profile/rahaeli.bsky.
She's been working in T&S since before twtr & FB.