If you send google a c and d, they will comply. Pad mapper was sent a c&d and decided to not comply. Hence the case. Edit: and as has been pointed out, google

If you send google a c and d, they will comply. Pad mapper was sent a c&d and decided to not comply. Hence the case. Edit: and as has been pointed out, google isn't competing with Craig's list. Padmapper's gameplan is to disintermediate Craigslist away.