@Eddy Not at all! I have connected with two excellent Italian teachers through italki. What's more, I have had rewarding language exchange sessions with several Italian-speaking learners of English, and some of them I continue to chat with now and then. I've also learned things from reading the discussion and notebook entries of other learners.
I agree with @Irina that the website (I don't use the app) could be improved. My top wish would be to find someway to direct people to the appropriate path for simple questions, for discussions (that aren't simple questions), for notebook entries to be corrected, and most important, for a way to find language partners. I simply don't expect the italki team to make this into my dream application.
On second thought -- maybe I missed some humor in your comment! It's hard to know when to take people literally, especially when you don't know them.