Hi Chris, I do not quite understand what you mean, in this case it's just an "element" of the feed, in a way this url isolates the element. What else do you want like url?
Like this example here: https://unacms.com/page.php?i=item&id=3660

For sharing, you have several options if your members have an account on these 4 main social networks.

For other sites, it depends if they use for example embed.ly the possibilities are almost endless .... and they can share everything that is public from your site, as I do below: