> While I never drive drunk, I sometimes post drunk.

That should be illegal now, along with using the mobile phone while posting.

> So yesterday some moron runs a stop sign and pulls out in front of me.
>
> I move from the right lane to the left lane to avoid him, but he swings
> wide so I swerve back into the right lane and at the same time he
> corrects and also takes the right lane.

It's another MFFY Sloth.

> So I make another lane change and pass him.
>
> At the stop light, I make note of the name of the company on his truck
> and write down his license plate.
>
> Should I even bother? Does anything ever come of these reports?

Reporting to the driver's employer may get a response.