I think Tesla is suing Mills for several reasons. One is to discourage activity it thinks is sabotage and slander. Secondly it wants to do discovery to discover if he was working for someone who wanted to undermine Tesla, like a stock shorter or a fossil fuel or automotive company, who it would then sue next. And I am guessing it is also a preparation for another suit against the sleazy media company that published his claims, again to see if one of the above enemies was behind it.<p>As for the $167 million claim, the idea is not to get the money from Mills, which Tesla is perfectly aware is impossible. Rather it is to set the value for a later lawsuit, and also to let people know it is serious about defending itself.