You seem to be telling a story about someone who lost website traffic because Google changed their ranking scheme or introduced a competing product. Is this right? If so, what happened, and is that person you?
It wasn't just Google changing their rankings (to manually put their own results ahead of competitors), they were also scraping data from these competitors and displaying it as their own, which they continued to do after the FTC told them to stop.
Here's a good summary of some of Google's questionable practices around search (disclaimer: I wrote this for a class in college): http://thechronicle.github.io/blog/2012/06/01/dont-be-evil/