A couple of weeks ago I got involved in a group email. (Never get into that!) I'm not on Facebook or Twitter - for a reason... I don't do forums or chat rooms - for a reason. I won't be doing group emails ever again, for the same reason. As in any live conversation you say too much, say things you shouldn't, and get caught up in the negative flow - the difference is - it's in print.
Everyone is diminished in that kind of exercise - every one.
Anyway - I read a funny post involving one of the participants of that group email. It's a transcript of his conversation with a Facebook commenter who objected to something the other said. I wish I could link to it, but the blog owner doesn't want any association with me. It is a very funny post however.
If only we could undo some of the things we say and tweet.