One thing to note is that deletion of a message on your end does NOT remove it from the person you sent it too. I have a second test account I attempted this with and the received messages were still accessible by the recipient, even if they were gone from the senders.
Any idea how to do this with your photos/wall posts too? I'd love e.g. a IFTTT action or a script that once a month would archive and delete anything on my Facebook that's older than, say, a year.
Gotta say, it really bugs me to know that people would willingly download a script they don't understand and run it against their private data.<p>Sure the javascript is open source, but how many people will actually read and understand it before running it?<p>Not saying that this specific script or post has any nefarious intent, but it's obvious how easy it would be to trick a bunch of otherwise intelligent people to give away access to their facebook account by posting something that claims to protect privacy.