It really doesn't have anything to do with friendly or unfriendly. Think about what you've been saying. Yet reality says that search results are quite literally tweaked at a rate of about 1.5 times a day. With major overhauls coming about once every year to year and half.
Rendering the possibility of manipulation of results that are either favorable or unfavorable highly possible.
People make a lot of money positioning and repositioning website search rankings based on the changes. They also make lots of money responding after major changes completely eff up specific business sector or other search results. Your entire feasibility bent is just LOL able relative to capability, the capability exists with a few clicks of the mouse.