Since some hours ago it is possible (again?) to see user's diaries in each language grouped together:
osm.org/diary/en
osm.org/diary/de
osm.org/diary/it
osm.org/diary/fr
osm.org/diary/hr
osm.org/diary/nl
osm.org/diary/sl
...
along with their rss feeds
osm.org/diary/en/rss
osm.org/diary/de/rss
osm.org/diary/it/rss
osm.org/diary/fr/rss
osm.org/diary/hr/rss
osm.org/diary/nl/rss
osm.org/diary/sl/rss
...

The feature was started, but not working, so i fixed it.

Expect bbox filtering in the next few days if rails gods will be nice to me :)