Huge amounts of inactive users
Due to the fact that DuoLingo is a highly-awesome idea, many people come to check it out sign up. Some of them give up after the first few lessons, others hold on until a bit later on, but generally, most of them leave this site for good, perhaps visiting once in a while in times of boredom.
Thing is, even though Duolingo is fun, it takes motivation to keep going. Language learning journeys arent easy.
So, I think it'd be nice, if we the dedicated few, would be able to gauge where do we stand compared to other users. How many more\less words do we know compared to the average user? and points?
There are many factors like these that can increase motivation. Progression would be quick thanks to passerbys
There is something in this - I would like to be able to find other people who are at about the same level in a tree as I am, to pace myself against them. A user search that let you find these people (and perhaps also those with similar levels and numbers of points) would be a nice feature.
In defense of the 'inactives,' I left Duolingo for ... let's see, about six months (eek!) and I'm back. Here's why: I started taking Spanish I at the local college and realized that Duo is a really fantastic practice tool, and helps keep my memory of vocab/grammatical concepts fresh. I discovered (when I started my class) that the practice I'd gotten from doing Duo for two months (six months ago) was actually quite solid and foundational.
Like many of you, I'm not here for the gamey aspects of Duo, and certainly not for any competition, I simply appreciate that it's a pretty good FREE language-learning platform. I do agree, though, that Duo could do more with grammar. The best insights I get into grammar (on Duo) don't come from Duo directly, per say, but from the users who comment on these forums, which, I think, is an invaluable part of this whole program.