What is the efficient way to search for a comment left by a particular user on my post? I can go back into my activity/comments in my profile page and dig it up. But this comment was left by a user almost a year back and it is highly unlikely I can look it up manually using a brute force search technique. (I know the username of the user who left the comment on a specific answer of mine. I don't remember the exact post, which I answered.)