Greg McVerry Greg McVerry on quickthoughts.jgregorymcverry.com:
This make sense, and I agree I don't want to revise a post either, though I do wonder if a read post with a status reading should be a reply-to a read post with status to-read and then a read post with the status of finished sent as a reply-to to the read post with a status reading

I’ve experimented with a reply-chain like that a couple times, e.g. https://gregorlove.com/2017/12/finished-reading-a-wrinkle-in/