Great quote from Edgar Degas in today's Art Quote of the Day.
"Painting is easy when you don't know how, but very difficult when you do."
In many ways I feel this with poetry as well. However, I don't feel it with programming. This despite the fact that programming feels artistic to me while doing it. Yet as I learn more, it seems to get easier, not harder.
The more I learn about poetry, the more difficult it gets to write, in some ways. Maybe this is only because I am in different places on the learning curves. Though you may not think so from my poetry, I am much farther ahead on studying poetry than I am on hacking.