I don't know if anyone else has seen this, but Facebook has started to roll out a new search function. It's looking at posts that you have recently commented on, and is then suggesting what it regards as appropriate search terms. It looks like this:
I'm really not sure that it's a sensible idea. I find the notification, which sits in the searchbar window to be annoying:
In the example that I've given I have no recollection of commenting on a post about Ikea.... oh hang on.. yes I did. It wasn't anything at all to do with Ikea, it was about a friend who posted that he wasn't well enough to go there, so I made some comment about man flu and shopping. The fact that it was related to Ikea was entirely beside the point. If Facebook is keen on getting me to use search more often, they might want to try increasing search functionality, rather than faffing around with novelty ideas.