Apparently Mark Zuckerburg is a prime offender. I found an article about "so" and the author noted that he started 40% of his answers with "so".
I found this of interest as I was reading about high context and low context languages/cultures just the other day. One of the things mentioned was the Gallic shrug. It means nothing....but says everything.
French Businessman: The permit will be ready by then, no?
Civil Servant: *Gallic shrug*
Probably every language to some degree has these things, but I find a lot of the English ones fascinating. "Right!" is a good one.
PTA chairperson: Right! Let's work on booth assignments. Who'll do the ring toss?
It connotes authority. The lowly person in the meeting can't say, "Right! Let's take a break and pick up on the 4th quarter figures".
Even "like"....it is not just laziness.
Person on bus to friend: I asked him when he would be finished, and he was like, "I'll get it done."
The person is indicating that they are paraphrasing, and combined with the snottiness of the response, it builds a clearer picture.
"So" is interesting, though. What is it saying?
In one of the articles I found on the rise of "so", the author felt like it was patronising. To him it established a sort of baseline. By saying "so", you are saying something like, "I am knowledgeable of the issue, am smart enough to establish all that has been said as fact, and am now going to enlighten you further."
But there is actually, according to some who support feminism, a bit of darkness behind it all. It seems that these little things only become "irritating" when they are done by females. Or that they become irritating because they are adopted by females.
The aforementioned "like" for instance. Or the uplift at the end of a sentence. And lately vocal fry. There is an interesting Youtube video showing that men have been doing vocal fry for a long time....and nobody has noticed. But along comes Scarlet Johansson/the Kardashians, and it becomes an irritant.....and according to the self-appointed Linkedin employment gurus, a career killer.
http://forward.com/sisterhood/318118/vocal-fry-is-your-problem-naomi-wolf-not-womens-problem/