Fun to use when you're bored! You might get to know some interesting things
Yes, you basically talk to strangers with this, parents. However, as long as you have stressed the dangers of giving out your name and age to these people, then you're good to go. Languge? Depends on the person, always expect it, but it shouldn't be a big deal for anyone over 13+ (this goes by my saying that if you don't want your child to hear something in the media, its a good chance he's already heard it tons of times at school, you can't keep your children innocent forever anyway, you'll hurt them in the process). I've used this several times and actually got a few interesting conversations going, one from a person living in German, as far as he told me. Overall, its a fun, safe, anonymous way to talk to anyone across the world about anything you want.