Noticed a bug (?) while editing translation of BuddyPress here http://translate.wordpress.org/projects/buddypress/dev/ru/default
Not all untranslated strings are showed. How did I found that:
1) went through all untranslated strings,
2) exported the po file of everything ru_RU
3) opened in Poedit and noticed that some strings appeared to be untranslated, although they are not listed under Untranslated filter in GlotPress.
4) translated them in Poedit and imported into GlotPress
5) got the message that 16 new strings were translated.
So in general – untranslated strings were not showing under Untranslated filter in Glotpress.