I have a similar usage of sharing issues and I use a free plugin which track each share action. Additionally you can grant a share view to non users (of your JIRA). Maybe this free plugin would be a nice solution for your request?
Hint: It grant a dynamcially view, so there is no need to refresh active shares
The mentioned user gets an email that he/she was mentioned in a comment, even if the user is not assignee, reporter or watcher. So, it's the comment that is tracked, as you wrote, but through mentioning a user you can trigger an additional email to this user.
Does the user have to have a Jira account, or can you mention an external email address?
If a Jira account is required would an example of this look like this: Blah blah blah "@jmedina' blah blah blah. Can the mention block appear anywhere in the comment?
If external emails allowed, does how would that look?
Hi all! Lauren here from the Enterprise Cloud marketing team. I have some exciting Cloud updates from #AtlassianSummit that I wanted to share. We want everyone in your organization to be ab...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs