LJ/GJ backup tool?

Does anybody know an LJ backup tool that will a) work for GJ as well, b) can do comms as well as  journals and c) will save the threads along with the posts?

It seems that GJ is struck with rapid bit rot, especially since so many refugees from LJ ended up there. It worries me. I would like independent backup for some things there, just in case.-

ETA: A tool for unfolding thread on a page (which I am sure I saw people mention) would be very welcome as well!

(no subject)

Really interesting page about 'Why do cats ...?' found at otterdance and re-posted for spreading.-