Here's an example: Chocolate lovers rejoice! Chocolate lovers, rejoice! To my understanding, the first one says that chocolate lovers are rejoicing and in the second one, we are asking ...
In a brief exhortation followed by the name of a sports team, such as "Let's go, Dodgers!" or "Go, Phillies!" is it ever appropriate to omit the comma?
I grew up learning that the comma must be placed there, but it seems like an unnecessary interruption in a phrase that isn't ever spoken that way.