An etiquette tidbit I just learned from @HunterZ
When you write threads, you can set the visibility of all the reply posts to "Unlisted". This way all the non-initial posts won't flood user timelines in reverse chronological order (and interspersed between others' toots), which can confuse. People will just see the initial post and upon clicking that see the whole thread.
I will try to remember this. But I will obviously also forget at times.