Re-read the article, the author does not give a primary source and cites a different article. The subjects of the lawsuits (from many years ago) seem to be sites that are scraping ads/listings on craigslist and mass populating their own site to make it seem as if they have users OR they are sites that are aggregating the information on craigslist and trying to pass themselves off as affiliated with craigslist by using their trademarks.
If you've ever searched for an apartment or a car for sale you'll find that many of the new and popular sites are literally just posting ads scraped from craigslist.
If you've ever searched for an apartment or a car for sale you'll find that many of the new and popular sites are literally just posting ads scraped from craigslist.