There could be a number of factors on why a buyer doesn't like a particular neighborhood. It could be the diversity. It could be the crime rate. It could be the school district. The buyer can have any reason they want for not liking a particular property as they are the ones forking over the cash for it. Now a real estate agent, on the other hand, can be liable for what they say about a neighborhood, based on school district, diversity, or crime rate, due to Fair Housing Laws, but a buyer cannot.