But does it? No matter how many times I click "Report Spam" Google is not going to wholesale block LinkedIn's E-mail operation. At least those E-mails will start showing up in my own spam folder, but that's hardly affecting "their entire operation".
This is like refraining from voting in an election because "my vote won't matter." If enough people "Report Spam" then even LinkedIn's email operation will start to be impacted.
LinkedIn may be a special case, and then Google may be a special case too. But it will definitely help for all the other countless sites that are not LinkedIn.
