I'm working on the ability for everyone to search their own private conversation history. I just wanted everyone to know it's still in "beta" and will contain a few bugs. I'll make an "official" announcement soon. It's currently building a search index, so it's likely to not work at all for a couple more hours.
Okay, i've disable the debug code that was showing up. If anyone notices any problems with this, please bring it to my attention.