Reasons include:
- easier to type
- might want postprocessor directives again sometime, and listdirectives
can then use the directive/* files for either
- that it's done as a preprocessor step is an internal detail (and not a
very accurate one, really :-)
* Add a "conditional" plugin, which allows displaying text if a condition
is true. It is enabled by default so conditional can be used in the
basewiki.
* Use conditionals in the template for plugins, so that plugin pages
say if they're currently enabled or not, and in various other places
in the wiki.