The site already exists, grows about fourfold every year and has about 10,000 registered users, who use it to improve their vocabulary in English, French, German, Italian or Spanish.
That’s nice, but considering that I started working on this as a web project about 10 years ago (first working prototype online in 2003) and wrote my first language trainer at age 14 in 1985 and have wanted to improve things since then it’s rather neglectable.
A number of my other goals are directly related to this one. I guess the main reason I didn’t put it up here was that I don’t want to see this one failing, and it’s easier to ignore lack of progress (like during the last years) if the progress isn’t documented anywhere.
