We consider all of the sitter wanted listings on our site to be current until they reach the final day of their availability. As our members have complete control over their listings we leave it up to them to manage their own listing by either hiding/updating/deleting it or in some cases, simply leaving it to expire on the last advertised day of the assignment.
If you read all of the listings closely you'll notice that some of them are for ongoing or sporadic assignments or other situations such as home exchanges which could happen any time in the future. When the 'start date' of a sitter wanted listing arrives, a system email is sent out to the home owner asking them what they would like to do with their listing. If a home owner is happy to continue to receive inquiries from house sitters at their email address then we're happy to continue to host their listing.
Note that since early 2008 home owners have been able to advertise for house sitters through MindMyHouse without committing to a fixed set of dates. We hope that this new site feature will help to keep vital lines of communication open between our members.
You are welcome to contact home owners in response to any sitter wanted listing on our site. You never know, they could be needing your services now or in the future!