What's Missing?

[ookpik]

On a related note, if I go to the last page of a thread (eg. [14] above) yet notice that the first post on that page was unread, I then jump to the previous page (eg. [13]).  Even though I know that some of the posts on the previous page were not previously read, they are all marked as read.

If you click "View new posts" on the home page you'll get a list of threads that have been updated since your last visit. There's a  in front of each thread title. If you click that it takes you to the first new post. In your example that would be on page 13. That should address your needs unless I've misunderstood what you want to accomplish.

On a related note using the same example if the first unread post is at the bottom of page 13 the reader has to notice that the conversation continues on page 14. That's easy to miss. What would be really nice is that when using  the page length is automatically extended so that all new posts can be read without having to click to new pages. (I realize this could be a problem if a new user clicks on that icon for the first time and gets a single unpaginated conversation that's 14 pages long. I also appreciate that this sort of feature needs to come from MyBB rather than via some local mod.)