What's the deal with word strength?
I just looked at the "Words" tab for the first time. Looking down the list of words that Duolingo says I know, I noticed that almost all of them are rated maximum strength, even the ones I know I'm shaky at (and indeed some of them I confess I have no idea of the meaning). Meanwhile, there are a few words that I have never gotten wrong (like chat and chatte), which are listed as "weak." Clearly something is wrong with the way these word strengths are evaluated?