The permalink for individual posts used to be like: https://www.metabunk.org/how-buckli...rt-of-wtc7s-collapse.t8270/page-2#post-205029 It is now: https://www.metabunk.org/posts/205029/ The original is actually a link to a page in a thread, and then an internal bookmark. The problem is if the posts have been deleted, or the threads are merged and split, then the post might not be on the page it was before and the link will be broken. The shorter link just has the post number, so the server has to find out which thread it is in, and which page, and then redirect to the full URL. This is slower, but links to posts (rather than threads) are rarely clicked on. It was a change that needed a little editing of site templates, so let me know if anything seems wrong.