These are interesting points that I had never really thought of before. However, I have been under the assumption that the people behind lg15 were already tied up with this story, this site, a DVD, trying to make money from this project, nevermind creating spin-offs just to see what reaction they'd get from fans. When Gemma and Jonas were introduced, there were many people who were not happy about them being part of the story. However, those character's remained. I thought this part of the forum was to encourage those who were interested to make their own stories, parodies or videos. I though the revver upload was so fans could also "be rewarded" for their efforts (although I'm sure fans aren't raking in the dough)....I can think of half a dozen reasons they might post "fanfic" stuff, including the obvious, "Let's see how this flies and what reaction it gets," trial balloon type stuff...
Interesting points, Lord Balto.
Although this is not necessarily related to your comment, I still think anyone's creativity should be encouraged. Hence, I don't think there is anything wrong with discussing whether something is canon or not. I think it's of little benefit to make fun of someone's video.