I think with the development of social media, people are far more practiced in communicating with strangers, which may not actually be a good thing.
The anonymity of social media, and the absence of any likley comeback can mean that people are somewhat freer with their observations than they would be in a face-to-face situation, but that is the two-edged sword that social media offers.
As someone with a different perspective borne of a life lived before the internet, I still express my opinions here in the form and language I would use to the individual if we were face to face - not a filter system used by others on here.