I completely agree, Tony.
This would be especially helpful in those long, long, long threads in which I know I've posted many, many times, such as the A-Z alphabet game photo-sharing thread. I would like a way to see all of the posts I have made to that thread so that I do not inadvertently add an image that I have previously posted there. As you say, we could always do a search, but that can take a long time to do, compared to the second it takes to click on a button.
"Your" and "you're" are different words with completely different meanings - please use the correct one.
"They're", "their", and "there" are different words with completely different meanings - please use the correct one.
"Fare" and "fair" are different words with completely different meanings - please use the correct one. The proper expression is "moot point", NOT "mute point".