Any time you measure something, you impact what you measure. Without being pedantic about the Physics, look around. If you measure when people get in and our of work, they will optimize around it, and other things may suffer. If you measure defects in code, people will optimize it.
But back to the web... Search by definition is a measurement or prediction of usefulness. It will definitely impact what gets searched. But that collateral damage can be minimized. And it some cases it can improve the web experience, though I wouldn't bank on it. I certainly don't view the Web as a pristine wilderness being destroyed.
Any time you measure something, you impact what you measure. Without being pedantic about the Physics, look around. If you measure when people get in and our of work, they will optimize around it, and other things may suffer. If you measure defects in code, people will optimize it.
But back to the web... Search by definition is a measurement or prediction of usefulness. It will definitely impact what gets searched. But that collateral damage can be minimized. And it some cases it can improve the web experience, though I wouldn't bank on it. I certainly don't view the Web as a pristine wilderness being destroyed.