[boddhi]

The way the post type are setup make them not ready for translations array in array are the main problem.

For info bbpress v 2.2.4, translation files in my wp-content/languages/bbpress/bbpress-fr_FR.mo
All the others strings are getting translated 😉

[Stephen Edgar]

This is already fixed in 2.3 see https://bbpress.trac.wordpress.org/ticket/2138

[boddhi]

Ok good to know, thanks, i downloaded the trunk version and everything is working fine