99% of the time, yes. Actually only once I didn't. A new, obviously young poster IMd me before posting any messages. Asked me to be her friend. I was going into a meeting... had thought to respond and suggest posting to the group, that it was a good way to meet people.... then I plumb forgot (is it plumb as in the level, or plum as in the fruit??)....
anyway, thats the only time i didnt. I didn't notice it again for weeks....by then it seemed.... I dunno.