There is a proposal to negate only the affected run if you make a typo on your entry form. Currently, if you make a typo you are done for the weekend. It would change to:
If you make a typo, you lose the run and points. You can re-register and re-tech correctly and take a second shot at it. But only if approved by the race director.
If I understand it right, this is how Bonneville works as well. If you screw up, you can re-register and try again.
Considering that there are over 1,000 classes with four unique alphanumeric codes for each class, and just one wrong digit can send you home for the weekend under the current rules, it could be argued that the most severe infraction you can commit at Elmo is not a safety violation, it's currently penmanship.
I doubt there are many people in this world that have not made a typo on a form. Racers aren't always English majors, so I doubt they are an exception either.
I hope I never get into a situation where this rule would affect me one way or another, but I'm often very high-strung when going through tech so I imagine given enough time this rule will eventually affect my efforts at a race someday no matter how much I wish otherwise.