As SteveNuts said, you're too focused on the infraction. It's the lying part that's the problem because it shows lack of judgement. Which really just means it's

As SteveNuts said, you're too focused on the infraction. It's the lying part that's the problem because it shows lack of judgement. Which really just means it's something that can be used to blackmail you later. No one cares if you like porn or had a DUI when you were younger, unless you're lying about it.