Well...yes to what you're saying. But there aren't neat lines between our professional technical lives and our personal ones, in particular because we spend a lot of time hanging out with people who share our interests.

Social media is designed for friends, not technical discussion, it's just that human relationships of all kinds are messy and there are no clear lines. So one bleeds over into the other, this can be expected. I don't think that's social media's fault or the people, just a predictable consequence of "how the people be"