I dunno. When a Skype voice call on my iPhone ends, I look at the screen, and press the sole red button at the bottom-right of the screen. It's a heart, and it

I dunno. When a Skype voice call on my iPhone ends, I look at the screen, and press the sole red button at the bottom-right of the screen. It's a heart, and it attempts and fails to "like" the voice call. Then I press in the middle of the screen and the sole red button becomes a "disconnect call" button. How does that get through A/B testing? How does that get through, "hey Aunt Linda, try to make a call." testing?