Interesting article and I do agree that caution is always a good thing when it comes to diagnosing people. I think it is important to continue to do research to help us better understand this issue. I am hoping that the inclusion of gaming disorder in the ICD-11 will contribute to further research and clarity around this problem.
In response to Nigel's comment, "My caution is that we shouldn't be too quick to label people who play games a lot as having an addiction problem," I would say that I don't think we are labeling people who play games a lot as a having an addiction problem. I think we are saying that people who play games a lot to the detriment of their health have a problem.