Yeah, LRF is pretty much dead in the water. It only works on the Sony ebook devices, and Sony themselves have stopped supporting it, and Calibre does not support any future fixes for the format.

I'm also trying to cut down on the amount of formats needed for the Ebook Library. Currently, I have to deal with format specific issues with mobi, lrf, and epub all of which require different fixes. It's a bit much sometimes. But at least with epub and mobi the formats are supported across many devices so it's worth the effort to figure out the bugs.

Ultimately, my biggest wish is that archives and websites evolve to the point where the Ebook Library is no longer needed.