OpenRPC: user-attended RPC between sites

[meepbear *]

Wouldn't it make more sense (and be a lot easier?) to have something that 
would integrate into existing standards rather than invent a completely new 
way of doing RPC?

Maybe I'm getting it completely wrong but it seems that in the demo the 
actual "problem" is that LiveJournal doesn't expose its API through a 
webservice, leaving third-party sites with the only option of simulating 
everything (which requires the user's credentials).

OpenRPC doesn't seem to eliminate that problem at all.