User blog comment:DirgeOfCerberus111/Alternate Time-lines?/@comment-9734625-20110726132428/@comment-1022794-20110727072717

What I suggested last time this was proposed was rather then having several timelines, we set the slate clean; every user who comes to the site has their own individual timeline that they work off. If they wish their timeline to merge fully with another user, they can put a template at the top of their articles that says so should the other author give permission.

This way, there would always be a simple way to clarify what timeline the article is in. Before you slam the idea, take a look at Halo Fanfiction. wikia and look at the way they run the Against All Odds timeline. All articles under that timeline are labeled clearly, and because it's in a private timeline, it doesn't need to risk contradicting the other thousands of articles of the site that came before it. Unless the template is there, every visitor assumes the article is part of the owner's personal timeline.

I probably can't describe it very well, it might be best just to go to the site and check it out. We still wouldn't be allowing breaking of canon to clarify, it would just stop users having to check through hundreds of articles to make sure that theirs doesn't contradict anyone else's.