If you can't find the policy, write or call the service to ask. Purge timelines vary. Online Career Center cleans its system every 90 days, while Optics.org does so every 30 days. Other sites hold resumes for one year. Avoid sites that refuse to divulge their purge policies.
Recruiters often prefer sites that clean their database records.
Md. Mr. Bashir is upset that copies of his obsolete resumes are still available on the Internet. There's certainly no harm in taking calls from executive recruiters regarding your availability and interest in a position. Mr. Stewart doesn't mind reviewing resumes of people who are no longer job hunting. I might get shut down immediately, but I don't think it hurts them to listen to what I have to say. Use these opportunities to build relationships with recruiters and recommend colleagues who might be interested in their job openings.