That's silly. Cache is there for preserving things across many runs of some application. Applications certainly use it in a way that assumes long term storage.

That's silly. Cache is there for preserving things across many runs of some application. Applications certainly use it in a way that assumes long term storage. It's not for short term temporary things. It's a cache. It's not going to cause "problems". It's just going to massively slow down many use cases that rely on downloads.