Canadian data is poor quality. On any issue you might care to pick, the topic is better studied in the United States. I run into this all the time. For example, we make allocation decisions at a charity I volunteer at with, about what health problems unemployed LGBT people tend to have. We use data for American urban populations. The data doesn't exist for Canada, AFAIK. It's a smaller country! There's simply less research and statistic-taking done! It's a reasonable statement.
Besides -- commenting on the lack of good data usually implies the exact opposite of what you seem to think -- it is an admission by the poster that their argument is based on weak evidence.
