I've written an information and partial proposal document regarding the issues of creating journal views which incorporate entries or comments in non-English languages.
The document outlines some goals we should be aiming for, the problems that currently exist obstructing those goals, and some thoughts on how to overcome them.
The document also acts as a request for discussion on the subjects within by people with more knowledge or experience in the different aspects of the task.
If you are interested in helping with the task of making LiveJournal international-user friendly, or just would like to pick up some basic background on the ways which this can be done, check it out. Note, though, that I'm not handling the whole project of internationalization, I'm currently just doing the S2 part of it. Other people will be researching and working on other aspects, and avva is our resident expert on non-latin character sets and encoding.