I think you should always be able to display the flag. However, people who buy property and then immediately start litigation against the HOA are, almost without exception, a bunch of troublemaking pricks. In this case, the HOA restrictions allow display of the flag. If this guy wasn't a DUmmy jerk, he could have shown the flag and been a good neighbor at the same time. Instead, he chose to be a DUmbass looking for attention, and a nightmare of a neighbor.