TL;DR: Return readership / fan base!
Unique content is undermined by the copyright requirements of the devtome.
Anything on devtome can be freely copied elsewhere.
So, anything so unique that its sheer uniqueness makes it valuable should presumably be among the first things that people will use that freedom-to-copy clause on, promptly making it non-unique by "borrowing" it to put somewhere where hopefully it will get more traffic than it gets sitting among the mixed bag of content found on devtome.
That is a lot of why I have been aiming at content that is so byzantine that you'd pretty much have to clone the entire wiki to try to actually capture its intricacy, the depth and inter-woven-ness that makes it so deeply engrossing and take thousands upon thousands of pageviews to understand. (Any one person would need to view many many many pages to even begin to understand even just some tiny fraction of the vast byzantine "rabbit-hole" into which they have fallen or could potentially fall by getting lured into browsing the devtome.)
And even then, as someone already mentioned, merely reading only the devtome STILL isn't enough to really grasp it! You need to interact with players, or run certain free open source games using certain modules, or gosh knows what else to ever really penetrate the "fourth wall" and enter into the thing enough to really hope to grok it!
This is partly motivated by the "alternate reality gaming" concept, in which anything anywhere could be part of the (or a) game, and all things everywhere are co-opted into the game as part of the game or backdrop for the game or location involved in the game and so on. Such games are intended to be pervasive and all-engulfing. The term "rabbit-hole" has been used to characterise encounters where some aspect of such a game can, at least by observers who are "in the know", be observed.
Typically all the fictional websites mentioned in the game turn out to actually exist on the real internet, all the phone numbers and addresses characters in the game, companies in the game and so on are said to have turn out to actually exist here on
the planet known as Earth, domain names mentioned turn out to actually exist and to be registered to the fictional entities that, in the game, are said to be the owners of that domain and so on.
Total breakdown of "the fourth wall".
Given such a game, any topic whatsoever is perhaps best looked up through a "rabbit hole" or in general a site imagined to have some, however tenuous, possible or potential or tinfoil-hat-theorised connection to the game because any other sites on whatever topic you might want to read about are less likely to contain "easter eggs", clues pertaining to the all-pervading all-engulfing game, and suchlike bonus layers or snippets of interesting or useful or intriguing data over and above whatever possibly very mundane topic you are looking up.
Wikipedia, for example, might be a great place to read about, say, Group Theory (Mathematics), if you are not involved in a game wherein Group Theory (Mathematics) has some bearing upon Chronodynamics (a technology some planets purportedly are researching right now that, some speculate, could lead to advantages in war and combat or even just in economics...)
Thus really it maybe makes less and less sense to read about anything anywhere else than a rabbit-hole simply because any other place really does not comprehend the Grand Nexus Uberplan in which our puny world, in its possibly rather backwater galaxy, is embedded...
-MarkM-