Here's another one of my interesting musings - user-level backups. This is in the horrific eventuality that Livejournal's servers disappear, are vaporized by aliens, are hit by a huge EMP, etc. Allowing users to download a backup of their entries to date (possibly even create some kind of incremental backup system) would be nice so that we don't all lose months-years of valuable musings from our records.
"Not a sermon, just a thought." - the Pastor of McLean Bible Church at the end of all of the church's radio ads