High level but few lessons?
Some users have a high language level with only a few lessons. For example, level 10 (and lots of points of course) but only with 20 words learnt. How is that possible?
Following logic, if a user already knows the language and skips through lessons, the number of words should also go up with the points! But this is not the case?
It's probably because they are using the immersion section more than the actual lessons. If you just briefly read through the already translated parts, and make the translations rapidly, you'll get a lot of points in no time. Or maybe people are actually putting a lot of effort into doing a good job on the immersion page, and just don't take the lessons.