(reply to deleted discussion about race) Not comparable. They can't discriminate based on several protected attributes (race/religion/etc), but they can discri

(reply to deleted discussion about race) Not comparable. They can't discriminate based on several protected attributes (race/religion/etc), but they can discriminate for any other reason, even "I don't like him" or "using our trademark in his domain name". This is why a bar can throw you out for being a jerk but not for being black. As others have noted you do have some power to damage them in the opinion of the world (well, the opinion of a few thousand geeks who even know what Zillow is). It's a standard tactic to threaten and lowball. If you care enough, hardball back.