a lot of people score thier seeds so they germinate faster. if it is scored too much it will ruin it. score the right amount and it will let in water to expand the seedling right away before mold would have a chance to grow. Remember, stagnant water grows mold not fresh water. You have more of a chance of mold with unscored seeds because they take longer to germinate and that gives the moisture the time it needs to grow mold.
which greatly increases risk of damping off