[@netweb Keymaster 9 years, 10 months ago]

When you downloaded those files what options did you select?

You need to select All current to get the “current strings”

p.s. I’ve also just made a request to have bbPress “stable” language packs generated, once this is complete you should be able to download the translations directly from the WordPress updates dashboard, just as you get the translations for WordPress itself.

Keep an eye out for Finnish to show up in the API here