I think you're missing what I'm saying. If you look at San Francisco/East Bay/Albany:El Cerrito on craigslist there are 30 listings for 2/27. If I look in that area on your map I see only 2 listings.
Same here for my neighborhood. For me, this warrants not using the product at all... why use something that has an incomplete dataset? I could be missing out on that perfect listing!
Another thing is that some postings don't contain sufficient information for a machine to know its location... such as "near the Xyz subway station" or other atypical types of addresses that the project's parser might miss.
For some ads, there is no geo-data. To fix that for the next release, we'll list ALL ads, not just the mappable ones, in the Ad Widget. And we'll indicate in the table if the ad is on the map.
One good side effect though is the ads on the map tend to be less spammy than the non-mapped ads. I assume this is because the spam ads often embed their spam in HTML and don't use CraigsList's structure well. A good landlord is going to make sure their ad links to a Google Map on CraigsList, which also means we will index them.
