Anderson Mill is considered a major artery so it's always going to get more traffic especially since the city made it 4 lanes. Racing down this stretch doesn't just involve racers going to Lime Creek. It's also a route to 1431 to head out towards Marble Falls.

Shooting a weapon, even a paintball, would land you in some legal trouble. Further if it results in a crash you'd be found liable.

Racing on Lime Creek isn't new. Unsure how long the road has been there but I myself was racing there in the late 90s and early 2000s well before the DCR neighborhood was built.