Thailand is Cambodia's neighbor to the West, and this forum is dedicated to Thai news, stories, reviews, blogs, videos, Thai people and anything else related to the country. A lot of expats have both lived and worked in Cambodia and Thailand, and this area is a place to discuss all aspects of life in Thailand and what's going on there. Most topics are about Bangkok and Pattaya because of their larger populations of expatriates and tourists in those cities, but this is for all things Thai.
Nationality imparts a little bit more information. The nationality is relevant to others who may be of that nationality. So if a Scot reads the headline, he may be more interested in seeing who it is. May even know the guy. I would definitely read a story in an expat/tourist/holiday locality if Canadian is in the headline, no matter what.