In Australia a visual approach requires 5000m vis, a circle to land is not a visual approach, the visual part of a straight in instrument approach is also not a visual approach. Perhaps the terminology problem here is due to different country's rules.
The point is that Pedro was just trying to limit the answers to the requirements for flying a missed approach in IMC, he didn't want anyone saying that you should climb back up to MDA and have another go at it. That was pretty obvious from the context of the question. Nitpicking terminology is beside the point.