On one end of the spectrum, you have non-technical people going for wordpress.com accounts that are hosted by Automattic. On the other hand you have fairly technical high-traffic users like New York Times or CNet hiring either their own technical staff (or, once again, outsourcing that to Automattic).
The target market of "people technical enough to download, roll out and host their own version of Wordpress, but not technical enough to find and roll out a plugin" is fairly small.
They could probably package WP-Cache with a default distribution of WordPress, but since that requires allowing write permissions on some directories, I suspect they're erring on the side of security.
The target market of "people technical enough to download, roll out and host their own version of Wordpress, but not technical enough to find and roll out a plugin" is fairly small.
They could probably package WP-Cache with a default distribution of WordPress, but since that requires allowing write permissions on some directories, I suspect they're erring on the side of security.