A LOT of stuff does. I've come across several searches where it's happened. If you search Cape2Cape, which was the name of my MA trip last year, my posts are near the top. Even searching "Land Rover Tree" brings up my thread on the tree that hit the Rover (this doesn't really help me when I'm trying to research repair or conversion alternatives). I've even had it pop up on some completely-non-lighthouse-related search (can't remember), where it was the second result.

I think Grace mentioned this happening a few days ago, too. It's really annoying to search for the answer to your question and find...well, your question!