Some services have actually gone down that exact road. pastebin.com is one of them. But in other cases you simply don't want anyone to be able to extract your

Some services have actually gone down that exact road. pastebin.com is one of them. But in other cases you simply don't want anyone to be able to extract your info automatically. A good example would be e-commerce sites which don't want anyone to be able to scrape their pricing information in large scale and real time.