You could share that link as normal and people could click it and be directed to the thing you want to share, but they can’t view the content without logging in, and even if they don’t log in, the mere fact that they clicked it still links the two of you together in the user map. Nothing ever escapes the sandbox and nobody is able to share content from the site unless they accessed it from approved means, and they can only share it to others who are also using approved means.

Me: [presses PrntScrn, shares the result of that]