> I think the wiki is one of the modern world's most underrated -- and underexploited -- innovations.

Agreed on the underrated front. But I feel like I interact with enough wikis that its not obvious to me that they are significantly underexploited. What is an example of a place where you think a wiki could be used to significant effect?

> It is definitely one of the internet's great rabbit holes.

There's incidentally an entry for those:

https://tvtropes.org/pmwiki/pmwiki.php/Main/WikiWalk

> I always assumed it was user-driven like Wikipedia or Stack Overflow and that appears to be the case

Interestingly, there is now an "official process" for getting a page created. https://tvtropes.org/pmwiki/pmwiki.php/Administrivia/Creatin...

I created a page a while back after reading the Wiki Magic page, which at the time described how a page might be created without much content and, if the community saw value in it, fleshed out by community members, as if by magic. The example given of the process was the Mega Neko page.

All of that has been removed, along with the notion that it might be OK to just create a page and see what happens. But although the official process was already in place when I made my page, the direct process hadn't been shut down. I didn't even realize I wasn't supposed to.

Coming back to something of a point, TvTropes, like Wikipedia, seems to have come around to the conclusion that user-generated content was valuable in the past, but they don't want more of it than they already have.

Except, of course, when the trope or title be sexual enough that the advertisers might complain, then the “content policy” kicks in — which is of course really all about how pornography has no plot and thus has nothing to talk about, not at all purely about advertisement revenue, as was originally freely admitted.

- The original statement: https://tvtropes.org/pmwiki/pmwiki.php/Administrivia/TheGoog...

- The later historical revision: https://tvtropes.org/pmwiki/pmwiki.php/Administrivia/TheCont...

Of course, describing tropes that deal with graphic maiming, slavery, mass murder and all that deliciously family friendly matter that Google AdSense doesn't complain about, as the full might of the collective Soccer Mum has never been unleashed against such things, can carry on without incident.

They're fandom people.