Craig Newmark from craigslist brings up some good points about the soon-to-be-launched Edgeio service in the comments section of this post on BuzzMachine. It will be interesting to see how Edgeio deals with these issues. Mr. Newmark’s comments:

…I act as full time customer service rep, there’s a few of us, only a few, because with flagging, our community removes most questionable ads.

Using the tagging approach, how are bogus ads removed? Considering that spam blogs are already a huge problem, and how easy it’ll be to falsely tag viagra ads, the volume of bad ads will be tremendous.

That will also be true of blogs that do things like tagging photos that you’d prefer not to see, but they’d be in search results anyway. (You really don’t want to know.)

Also, how will ads be removed (by the poster) or expired?

When there are other problems, like defamation, how are they handled?

I’m guessing that many customer service reps will be needed, good jobs, but then,
you risk being a “publisher” which means that you have to monitor ads.”