@BeAware If I'm on an instance the blocks Threads, and I post something, and my account is followed by someone on an instance that does not block Threads, and my follower boosts my post, then anyone on Threads following my follower will see my post (assuming the day has come when messages flow from Mastodon to Threads). And that Threads account can then boost it on Threads and my post, from a Mastodon Threads blocking instance, can then even go viral on Threads.