They don't really care, just more fodder, more info for people. There are B&B's listed all over the place here that closed 15 years ago and were only open for a year or two. How they FIND the info to put in new online FREE directories is beyond me. But those free scamming (ie they lift info off others websites then show no availability) seem to be the ones to propagate this whole thing!
There was a CITY BOOK that gives restaurants and places to stay and sights of interest that listed 4 B&B's in my area and I am the ONLY ONE. I contacted them and they never took them out, reprinted them year after year and left them all in. FOUR. They told me I should be grateful we are in there at all when I let them know the errors.