The large community of pre-existing users of this service allowed the learners to observe communication of native speakers and to practice by communicating with other users who were no member of the class.
Even in domains other than language learning, the value of communicating is important. For instance, in mathematics
learning being able to verbally explain results and problem solving steps is increasingly emphasized. Competencybased learning as, among others, put forward by Niss regards communication of results as similar important as formal proving skills