Ah ok, thanks. My suggestion is for there to be a kind of view that shows the last x number of posts (Or posts up until I last posted) all on one screen. Or another way would be to have a view that reverses the sort order of posts and let's you reply at the top of page 1. This way I can read one page and reply instead of loading the latest page, seeing just one or two posts at the top, going to previous page, scrolling halfway, reading new posts, loading the next page again and then replying.
Yes, I'm sure it would be terrible to reverse the sort order for everyone, I was thinking about it being an option. Personally I hate "Top posting" but I was trying to think of easy-to-implement ways of putting all the relevant recent posts on one page without having to produce a whole new view. No matter what page size you choose, you'll always have the problem of only being able to see one or two posts on a new page and having to page back and forth - especially noticeable on mobiles.
I take your point about the page number, it is quite useful that that's static.
I haven't tried favourite threads yet, I'll give that a go. Thanks for the tip.