Or a possibility to define language of comment in a pull down menu? With the possibility to write a bilingual comment with both language 'tags'? And the ability of users to decide which languages to view? (And an understanding that if you wish to do a bilingual response to a comment in language 'A' in a diary in languages 'B' and 'A', you better translate what you are responding to. We'd get nice, bilingual stories with little bilingual comment bridges as well as monolingual ones.)

Also very nice for when one knows one of the languages "well", and the second "a bit", and can sort of make do in both together.