To get ads like these removed:
http://treasure.craigslist.org/pet/1893467882.html
I've made it my personal mission to "police" my local Craigslist for bybs and millers,, and flag any ads that are in violation of the TOS. Several flags are needed for CL to remove an ad, and sometimes I guess I'm the only one out there paying attention, because the offending ads sometimes remain day after day
It would be so cool if everyone here did the same on their local Craigslist boards. It might actually slow them down some!
Thanks