Words are strengthened even though I didn't use them
I just did a French timed practice and came across the phrase "in spite of". I didn't remember the French for it, so I peeked in order to do the translation and used "involontairement", which was marked correct.
When I came to the end of the lesson, I saw that I'd strengthened the word "malgré" (the word Duo wanted me to use instead of involontairement). Malgré was now at four bars strength. I didn't encounter this word during the timed practice at all.
Should Duo really count a word as strengthened even when a user doesn't see it or use it? Seems counterproductive...