Poorly designed

The app doest have the people I already have added. In the list of suggestions I should send an invite to, is my own email as if I could invite and chat with myself? There is no logout button, and the app logs me out of other devices. Theres no way to know if Im seen as available or busy or if other ppl are available or busy. I cant add people by their username. The list goes on...

Lanena123445 about Yahoo Messenger - Free chat, v1.0.7