Those 10 responses all mention sub (or a lack of understanding about the difference for game-time) and that was just in the first 40 posts out of 400. That last guy is either buying 6-month game-time at intervals or he has a recurring 6-month sub, but he used both types of purchase in the same sentence–doesn’t know the difference or is using them interchangeably when they are not.
Blizzard felt enough people were confused that they issued a clarifying statement that subscription prices were unaffected, but that clarification is 327 posts in. Most people presumably didn’t see it, because there is still abundant confusion in both the CAD Price thread and the US Price speculation thread you made after Blizzard tried to clarify (albeit deeply buried in a fast-moving thread).