Could Craiglist shut down every single IP who scrapes? Could you build Padmapper to be less 'realtime' and more 'tell me the city and I'll set up a client-side

Could Craiglist shut down every single IP who scrapes? Could you build Padmapper to be less 'realtime' and more 'tell me the city and I'll set up a client-side scraper, come back in 15 minutes?'