This has always been the case in the "corporate/professional" world imo.
It's just much easier now for "laypeople" to also adjust their style to this. My prediction is people will get quickly tired of it (as evidenced by your comment)
Question: would you go to a public place and call a person who is listening to you a loser or a monkey with the risk of getting your face smashed in?
Companies do public announcement with the risk of getting sued left and right. Normal people chose careful words in public. In the Internet it seems different rules apply in public. Laypeople are not adjusting to corporate talk, laypeople are more and more aware of the public of the Internet and behave accordingly (most are, like in real life, mute)
It's just much easier now for "laypeople" to also adjust their style to this. My prediction is people will get quickly tired of it (as evidenced by your comment)