Another throwaway here. Let me explain why I'm afraid.
Discussion that I've seen around microaggressions seems to land on the idea that, much like sexual harassment, one can be guilty without intent or awareness. This is a difficult to balance situation because, on the one hand, you have the fact that we as white men do not know what it feels like to be "othered" or harassed every day of your life, thus making our own judgment of what constitutes fair and unfair treatment somewhat skewed. On the other hand, this can lead to the infliction of the "perpetrator" status in situations that, to my honest attempt to calmly and thoughtfully analyze the circumstances, grant too much power to the accuser.
Prior to the current email list under discussion, there was a web app internally for tracking microaggressions. I remember reading it and being horrified at the treatment that non-white people in general, and women in particular, endured - story after story of degradation, insults and bullying. Referring to these actions as "micro" aggressions was comically understating their magnitude. However, I did see one or two stories that I thought were an extremely uncharitable interpretation of a normal, everyday situation. I vividly recall one - let me attempt to retell that story here: "One day I was waiting for the bus to ${SOME_DESTINATION}. The bus stop was unusually busy, lots of people were around. Somebody said out loud 'Wow, looks like everybody is going to ${SOME_DESTINATION} today'. This comment was aimed at me because I was not white."
In the above scenario, I acknowledge the possibility that the speaker was aiming a negative comment at the reporter...but surely it is also possible that a non-biased person would make that comment innocently, perhaps even without knowledge that the non-white person were present? The reason I am afraid is that I can imagine myself making an innocent comment like that, bereft of any bias (implicit or otherwise), and I am afraid of what the consequences might be. Having a discussion about the comment would be fine, but what if I were to be brought in front of HR and have it formally recorded in my employee file? What if I received explicit disciplinary action? Could I be fired in circumstances like this?
As I've said, I recognize the legitimacy of the vast, vast majority of these grievances as well as the need to share them. What scares me is the absolutes with which they are spoken about, in that the accusation of having committed a microaggression or act of bias always means the accused is guilty. Without acknowledgement that communication is challenging and an innocent comment can be interpreted uncharitably, I am afraid of the potential consequences.