Is this a market research trawling mechanism?

What happens to all this useless information?

Is this a market research trawling mechanism?
It is an advertising mechanism. I told someone about shea butter as a response to a q about dry skin. Mine was chosen as best answer... I happened to look at that q again sometime later and on the same page w/ my answer there were 4 ads for shea butter. "Hey this lady says shea butter is great! Here's where you can buy it!"
Reply:I think you are unto something there. It´s also a means to connecting to people. Some people have real questions, others just like to tease. Some of the questions have inspired me to write, research, or ponder. So all and all, you take what you feel is useful for your personal growth. You know what they say, you can even learn something from a fool.