I know I forget to do it sometimes, but if you're creating a thread, consider making the first post 'Public' and the nth ones 'Unlisted'.
Given how important the Local Timeline is to the experience of Mastodon and the Fediverse in general for me/others, spamming it with lots of messages in a row is kinda sub-optimal.
There's also benefits to *you*! People will discover the first post in your thread, rather than seeing a post in the middle of your stream-of-consciousness!