This recent display of immoral behavior is common.  This time KB got caught and was exposed. http://www.ksat.com/news/16262254/detail.html

KB Home has a pattern of this kind of bullying behavior.   As a matter of policy KB requires homeowners sign a full release and has even been known to routinely require homeowners to sign a non-disclosure agreement to get basic warranty repairs completed.

Example, during a walkthrough a buy noted the carpet was defective which KB agreed to replace if they closed on the home that day.  After three months of constant pleading and begging KB finally agreed to replace the carpet if the owner agreed to sign a non-disclosure to not tell anyone, especially their neighbors or the news media, etc.

Of course the owners agreed, their carpet was replaced and the story never made the news. 

With KB Home a home warranty is conditioned upon the homeowner signing away their rights. While most industries pride themselves on the quality of their products, the homebuilding industry survives on producing defective homes with conditional warranties. 

Builders, not just KB challenge their customers to hiring an attorney to make warranty issues legal disputes, knowing the average family can not afford litigation as their foundations fail, defective windows and roofs leak and their health declines and mold grows, etc.

It's “Deal or No Deal” not a warranty!