I know someone who made a false accusation of sexual assault. Genuinely false. She was in a very dark place, prison would not have helped her. Or the man she accused. His life was very much affected though, and the stigma didn't go away when the charges were dropped. Not sure what the answer is really.
If we're too hard on these women, then it becomes even more daunting for women who are genuine victims.
But there are cases where men have been genuinely falsely accused, and lives are destroyed.
Perhaps there needs to be a 'not proven' verdict, (as I believe there is in other countries) that can be made public, so that people can tell the difference between unclear evidence and genuinely found to be innocent.
Although that would only help when it gets to court. The person I know made her accusations very publicly, then quietly retracted it when she was in a better place mentally. Charges were dropped before it went anywhere but people still assume that he did it.