> In fact, I've had some people -never- 'meet' my gaze, because they never become self-aware enough to "oh, I should look at my camera when I am talking".
I'm not sure that looking into the camera is that important in a one-to-one setting. I'm specifically not talking about a "broadcast", like when you address an assembly and the communication is expected to go both ways.
To me, the reason why we look at a person when talking together is to see their reactions, and for them to see ours. Even in real life, and in particular when we speak, we don't look at the other person's eyes 100% of the time.
So in the case of video chat, where the "eyes" (the camera) is completely separate from the face, looking into the eyes cuts you off from their reaction, as you'll only see it in your peripheral vision. However, even if you see their eyes never meet yours, you're able to infer whether they're looking at your video or reading something else. And the most important part, their reactions, is still there.
To me, the whole point of video chat, as opposed to a phone call, is to have this additional channel of communication. If you're not looking at the person with whom you're talking, you might as well not use video at all.