It looks like some new Pinside updates were released recently. One thing I noticed - search results do not reflect read/unread status any more (see pic below). It used to be that a search result would show this, and you could see if you've already read a thread, or if there were new /unread posts. Now, they all show as 'you have not opened this topic' - yet I know I have (I tried several of my frequent searches with the same results).
pinside_search.png