Forgiveness. Rather than encourage better behaviours of those targeted by the mob, it would be better to encourage better behaviours of the mob itself. Forgiveness is absent in every social media or comment section and yet it's one of the crucial ways we get along with people. Having others visibly but perhaps silently forgive another would allow social proof that its okay to forgive this perceived offender. Forgiven…
The author goes into that in the next section of the article. Forgiveness starts with an apology.
And if you wait for an apology, you'll never be able to forgive, remove that burden from yourself, from those who have wronged you who are dead. Many instances of anger and a lack of forgiveness are multi-generational - or even parent/child.
People can rightly forgive without the other party even knowing about it. In fact, I'd argue the best kind of forgiveness is done completely silently, personally, and the only way anyone could figure you that you have forgiven someone is through your subsequent behavior.