The PostgreSQL database that runs Signifying Nothing behind-the-scenes was just upgraded (from 7.3.4 to 7.4). Hopefully the dump-and-restore step went smoothly, and none of the old content should have vanished into thin air.
Allegedly this release of PostgreSQL is faster, although how much improvement will filter through all the junk between your browser and the database (namely the LSblog
code, which is hardly a model of efficient coding) is something of an open question.