I noticed this a while ago but only got around to posting it now.

The breadcrumb navigation tool at the top of every page is missing a separator between the thread name and the sub-forum

Here's the example for this very thread:

Funnily enough when I paste it here, yes the newline characters exist at the end of the respective sub-forum links. So it's there, just not rendering correctly in the browser.

Also, this means that the sub-forums are no longer clickable so you can't navigate back to the sub-forum when finished reading a thread.