Interesting point, for sure, that these things may change over time. I wonder, for example, if we see the FFVII fandom mellow out on this score once new material stops appearing. (If it ever does...)

Personally I have always thought of it as one canon, and I was surprised to find two separate categories on FF.net. I never cross-posted DSHnD to The Pit for a few reasons, but my major issue was having no idea where to put it.