this occurs to many of us, mostly on facebook, or youtube, or even here. it is that feeling of regret and dissatisfaction when you think of how your comment could have been better. it can apply also when you have posted a hypotheses and you end up being proven wrong.
(walkin out to your car to get to work) haha, i should have posted that. oh well
a lot of posters remorse occurred on febuary 4 2008. gmen ftw