Luther hit on the subject. Many agents simply aren't technology savvy. They depend on websites to do the bulk of the work for them. Very few agents put the time into correcting information out there on the web. However the fault is not entirely on the agents. Zillow is famous for keeping every piece of data, whether accurate or not, on its site forever. This tactic allows for huge amounts of data to indexable by search engines, but is also misleading.
The technology is getting better each week. Programmers are writing in new code to reflect proper status and information changes on the local MLS feeds.
As an agent, you have to pick your battles. There are thousands of websites picking up the data we input into our system. Sometimes those sites are on top of it... percentage-wise, most are not.
Take it from a guy who built these systems for many years. It's a daunting task.
The other reason may be that until a listing is actually recorded it is still available for back up offers. The MLS or a REALTOR is always the best route for obtaining accurate data.
The point is that sellers expect list agents to MARKET the home until it is sold. That is why you need an agent all your own, Buyer's agents can tell you what properties are pending sale, also the ones even if pending still may be worth placing a back up offer.
If you would like personalized service please call or visit us online.
also our site at http://www.everythingprescott.com will show pending or under contract on the listing.