If that were the rule. If kicking a person when they're down was considered as awful as the things you knock people down for, that would end it.
Make the punishment fit the crime, and stop there. And maybe if we wanted to be fair, adopt a rule like innocent until proven guilty, or try to see it from their side, or we understand that sometimes people tweet when they're: 1. Drunk. 2. Tired. 3. Lonely. 4. Feeling unloved. 5. Or neurotic. 6. Being human.
I once saw a pundit with hundreds of thousands of followers call a mob victim an asshole and people who I thought well of (before this) praised him as being a saint.
As Worf might say, sir you have no honor.
There must be a New Year's resolution in here somewhere.