[@Allycat]Deleted.

For your own information, if you need to delete a large sum of posts like that in the figure it might be easier to make a new thread and just copy the posts over you want, and we can delete the old thread. The concern is that hidden/deleted posts are still indexed on the page and the next post will be next in line and wont bump back up the post order.

Eg:
You have 21 posts on two pages (20 page one, 1 page two)
I delete 19 posts off page one.
Page one will only show 1 post before showing the next page button as post 1 on page two is still the '21st post', even if it's the second visible one.

You don't notice this with the occasional delete, just large scale ones. Gets harder as well in established posts, but can't help that.