Summary
Presentation
The main problem here is we are concentrating all kinds of information on a few pages. Some zealous curators only have the word merge on their keyboard so all they do is merge stuff into bigger and bigger pages.
Of course DeMerging? is important. A page is like a class (in an OO language): it should say one thing and say it well. There is nothing wrong with ShortPage?s, and in fact they often are easier to read than long ones.
The advantage of merging is that it makes apparent duplication that would often be scattered throughout the Wiki. Once pages have been merged, comments within them can be rearranged to place related ideas together. Once comments are grouped by topics, it becomes obvious that the same thing has been said three or four times. This can be distilled into a single statement that contains all the information of the original.
Merging also facilitates categorization. When I'm refactoring pages, I almost always find out that my initial idea for an organization scheme is deeply flawed. New strands of commonality pop out of existing threads; comments that I thought would make good categories turn out to be mere details of other topics. But these commonalities don't pop out until all the material is sitting there in front of you.
Once the page has been organized and converted to DocumentMode, then it can be split off and de-merged into subtopics. The resulting organization should hopefully be far better than the original, because you can see ideas emerge from the discussion.
As a nice side-effect, the page becomes much easier to refer to. The subpages can be given MeaningfulNames that might actually be the target of AccidentalLinking themselves, and the organization reflects the content that actually exists rather than your idea of what might be useful to people.
-- JonathanTang
Everyone on wiki likes smaller pages. That's not at issue. The so-called 'deletomaniacs' aren't saying that we should have a few long pages. They're saying that the information on the pages they're deleting already exists on the other page. Redundant information is widely considered no good. Read OnceAndOnlyOnce. Oh, and please don't use strawman arguments. They are for me just unbearable!
See Also - SinceWhenDoesSayingSomethingMakeItSo