[_ck_]

Caching will help for non-members, especially considering that a more popular site has a few dozen bots crawling around it at any given time. But yes, it will have to generate a new file for each page.

However even without wp-super-cache it’s possible to cache parts of pages for all members, especially worthwhile on parts that use a whole bunch of CPU cycles to generate each time.

I wrote some code awhile back to cache the tag clouds, since they are not filtered by logged-in/out and remain static until a tag is added or deleted. The tag cloud took an average of 10-20 ms out of 120 ms to generate on the front page so the savings were worthwhile.