Unless you have been provided a special entry link, LinkedIn login is used to grant access to view the content of this "website". You're Linkedin credentials will not be stored, and the login process all takes place on linkedin.com and not this "website". This application / "website" does NOT have access to make posts on your behalf.
If you like to disconnect this application for your LinkedIn account, you can do so at anytime by clicking you user photo, and then select the "settings" tab. Or simply edit your app settings via LinkedIn here :
Upon login in, "Johnny Jacques" will be notified of your visit via email. The email will contain the collected information listed above. This data will not be shared with any third parties, and will not be stored in any databases hosted by Johnny Jacques. If you are to sign out from the "website", you will recieve a single auto-mated email thanking you for your visit. "Johnny Jacques" may also use your email address, or LinkedIn user name to contact you after your visit.
https://www.google.com/policies/privacy/ , Opt-Out: https://adssettings.google.com/authenticated .