There are many citizens who had been accused of spousal abuse that are prevented from buying firearms without being convicted. This is common in nasty divorces where the wife claims physical abuse, and the court includes this on the husband's record with no evidence.
There are many expunged convictions that still prevent citizens from buying firearms for their protection.
Currently, it is nearly impossible for these people to get their names cleared. The NRA made this a priority.
Additionally people convicted of misdemenor gun infractions such as illegally carrying concealed weapons, carrying a gun unlocked or loaded firearms in a vehicle, etc. have been consdered guilty of “firearms violations” and put on the banned list. If this allows them to be removed that would be a very good thing.