Falsely accusing a man of rape can seriously destroy his life. Men who are falsely accused and then later cleared don't always get their lives back. They can lose their education (if in a university), jobs, career, family, reputation, etc...I even wonder sometimes if it would be worse to be falsely accused of rape be a woman than to actually be raped by another man, because at least with the latter your life is still in tact.
In the Duke Lacrosse case, the false accuser was virtually let off scott-free, until she committed a s**t ton of other crimes including murder and was finally put away. (http://en.wikipedia.org/wiki/Duke_lacrosse_case#Subsequent_arrests_and_convictions_of_accuser)
The only downside to this is that it might make actual rape victims more afraid to come out, which would be horrible in and of itself. But people who falsely accuse someone of rape can be destroying someone's life.
http://www.kerryman.ie/news/teen-girl-i-lied-that-stephen-lyne-raped-me-3034806.html <---This popped up today. What the ********?