Autoflowering cannabis strains are plants that do not need to be forced into flowering by cutting back the light cycle to 12 on 12 off. they do it on their own. a "hermie" is a hermaphrodite plant. usually caused by stress on a plant but in some cases can be a genetic trait as well. hermies develop female flowers as well as male pollen sacks. they pollenate themselves and ruin crops by filling them with seeds.

ive never heard of interrupting the dark cycle as a benefit to the plants either.
it would be the dumbest thing you could do in IMO:thumbsup:
good luck with your plants