How is this known upfront? I've lived for over a decade in this country without knowing this, until I actually applied for my citizenship last year. I'm just lucky I never went to court to contest a speeding ticket(because I never got any) or I could have screwed myself over without even knowing.

Also define "small group" - nearly 200k people apply for British citizenship annually, and I bet most of them have no idea contesting a traffic ticket can cost them a chance at becoming citizens.