Yes, you do miss out on much. But on the other hand you also gains a few priveledges when online. For me, I find it easier to be completly honest with my own thoughts and emotions. Often I do the stuborn sub happy go lucky act, but that sometimes can be done in real to. Although not that easy maybe.
But what I ment to say was that online connections can also make things easier, in some ways. The fact that you miss out on all the body language also means that you can miss out on all the body language stress.

I am too self absorbed, so that often when relating to people that stirs my emotions deeply, I become so aware of myself and how i look and act, that I`m sure I blur out much thoughts and emotions. When online, even if on cam, you still have less to stress about.
I`m not sure I was very clear on that, lol.