It always bothers me when I see things like this happen. Having the ability to communicate on a bulletin board is great, but it does not offer clues like facial expression and tone of voice. One person posts something they think is totally inoffensive. Another person takes offense and responds strongly. The first person gets mad about the response. Bystanders jump in according to what their interpretation was of the tone of voice. It escalates. Sad!

Maybe we'll solve this someday with more Skype-like bulletin boards