This isn't a problem, just something I was curious about. Let's say I update a blog very rarely (once a week or so), but I get few hundred visits a day so I still benefit from WP Super Cache.
As far as I understand, garbage collection time refers to how long a cached version of the page is kept. It is deleted (or at least not used anymore) after this time passes. Is that correct?
I was just wondering why this time can't be set to higher than 1800 seconds. I mean if I update my blog weekly, a cached version could very well be good for days.
If I set garbage collection to 0 to disable it, could there be any negative effects? If I publish a new post, the cache will be updated anyway, right?