Social media REALLY breaks into mainstream

I wonder if there is anyone out there who still argues that social networks are not mainstream. If there is, tonight's news report on national broadcaster TVR 1 should make up their minds that they are.
Tonight, the Romanian PBS, the local equivalent of BBC, has, for the first time to my knowledge, showed actual images/screen captures of Facebook. This was not in some niche, middle of the night teenie show, but in the main news show at 8 pm, as part of an ongoing investigation in the dealings of some local crook.
So, if TVR 1 thinks that research on FB is something that is relevant to be shown to 22 million people and also make assertions using the photos and status updates of a FB account, do we still think that social networks are not relevant? Do we also still think that what we post there is of no consequence?
Serious food for thought...