good question and the answer is yes , one who is leaning must chat daily though , i think the new 3d chats are very nice like there.com , but one must chat with native speakers

Hi, this is a very interesting question. I think that there are several ways you can learn a language by chatting: * Match two students who are learning the same language. Students at the same level are matched. This is ideal for practice (with no tutor intervention needed), or with the moderation/ marking of a tutor who provides feedback to each student. * Match two student learning different languages- say one native English speaker who is learning Chinese, and one native Chinese speaker who is learning English. The two can speak for a set time in both languages and “teach” each other. This would require little or no tutor intervention. * Match a student with a tutor for a one-to-one text chat lesson. It would be possible for a tutor to maintain conversations with multiple students at the same time.

if you mean an informal one, no. but you can get some clues to advance in the goal. informal chats gets you close to some colloquialisms and usual uses of speech that are not present in grammars and structured courses. that's my experience. between linguistic norm and linguistic use there is always a breach. when i was younger i got a lot of linguistic information through conversation with speakers of a language in a very dinamic way. nowadays internet has spoiled this, cause converstation is out of fashion but chat is king. but it has a lot of limitations and correct feedback is the first. correct feedback means that the users are truly understanding what each other is communicating unequivocally.