Nope to free up space they have the no activity deletion rule.

No filehost will want a case to be filed against them because of the copyright content uploaded to their host and close the company, so easy way out is delete the files and stay in the business.

Also,
DMCA Notice = Popular file = More downloads = More money for uploaders = more expensive for the filehost = Deletion.

BTW I don't find any sense of creating such thread.