Good catch. There's a huge discrepancy in social media between people who are employed/professionals, use it to climb the corporate ladders and people who are just hanging out there, like in a pub. These two worlds often collide, especially on Twitter.

In the real world it's not a problem because there are much more specialized locations. You'd expect rough language and jokes in a pub.

That's a great idea. It probably is a continuum and makes me wonder what the mean point is. Are there behavioral characteristics that fit some acceptable norm? Or will the acceptable norm just become the new thing to manipulate with big data.