I can't imagine the impact is significant even if we consider two degrees of acquaintances (you tell someone to not use Chrome and they tell someone else).
Fortunately it's not. On average people are only about 6 degrees apart, so in reality a relatively small number of people can get a surprisingly large amount of coverage in a frighteningly short amount of time, should they choose to apply themselves.
The world is very small, and privacy is a mainstream concern these days. The impact of one story or one action is limited, but in the end, users do get their say. Otherwise, we would still be using Internet Explorer.
