#2 Repair rule
NASCAR officials making bad decisions is nothing new, especially with the string of changes that they made following the acquisition of Monster Energy as a primary sponsor, but the worst of them all had to be the repair rule they tried to implement in 2017. The rule made it so teams only had five minutes to get a car repaired and back on the track before it was ruled out of the race completely.
Not only was the rule controversial due to the fact that it ran the possibility of forcing drivers to retire from a race early, it also seemed like NASCAR just did it to manufacture excitement throughout the season. In the end, the rule was changed to a six minute clock at the start of the 2018 season, but there still seems to be little to no need for the rule to exist at all.