I'm mixed on this and have often rocked back and forth on the issue. On the one hand, she exposed things that needed to get out and I'm happy that we are aware of the facts on the ground. She is a hero in the sense that she exposed terrible things that she hoped would enlighten the public. In that aspect, I'm with her. On the other hand, she released over 700,000 documents without having read all of the data. In my view, that's a bit reckless because it had the potential to do harm. At the end of the day, there is a reason some information is classified even if the government is secretive about a lot of things that should see the light of day. If she didn't know what was in every released document, then that is a bit careless despite her intentions to do good. While it didn't cause any measurable harm to anyone in this particular case. it had the potential to do so. Therefore, I do like that she took a stand to expose things that were clearly wrong, but I don't care for how she did it. For me, it's not about the leak, but how the leaks were handled. Regardless, no harm was done and she did expose things that should have been known, so I refuse to call her a traitor nor do I think she deserves the harsh sentence she received. I don't have the answers as this is complex situation, but my heart says to pardon her because she had good intentions, didn't hurt the U.S in a measurable way, and released things that should have seen the light of day.
Personally, this is why I believe Whistleblower reform would be helpful. Instead of having people act on their own, we could have a system with more checks and balances. Sure, the proper channels do exist and Manning neglected to attempt them, but many reports have shown the military can be vindictive against those who even use the channels; therefore, I understand her hesitance to try and go through it. However, a vigilante system is problematic and may have the potential to do harm. With a proper system, this can verify that the information being released is proper and wouldn't cause harm to anyone.
Seriously, I wish the debate on Manning could be placed into a more productive conversation. This shouldn't be so much about heroes and traitors more than it should be about us finding a way to hold our government accountable in a way that doesn't have the potential to jeopardize national security in any way. Nothing is clear cut. Furthermore, it's just as problematic to say those concerned about the implications that Manning's actions could have had are war criminals and hypocrites, as it is to say that Manning and her supporters are traitors for exposing those crimes. It's not a black and white issue and wish people could see the extent of the issue without needing to vilify or idealize the character in question and attack people with legitimate concerns on either side of the issue.