The original post asked a question: "Why can't Google [surreptitiously?] rank search results by actual relevancy (e.g. clicks & abandons)?"

The respondent felt that the original post contained the answer to its own question. Therefore, the respondent said, "This," pointing to the answer.

Ok, I see now that the original poster was effectively saying "this is why", not necessarily using the "this" meme that I was confused about. Still, I got my answer and the post has been clarified for me. Thanks, guys.

" Therefore, the respondent said, "This," pointing to the answer."

Shouldn't it then be "that", or have the quote come after "this"?