What Sparkling said. In 99% of cases.
Of the other 1%, half of those do a lot of hand-wringing and howling at the moon-ing and "How dare they!" like they thought they were having a private conversation with their bezzie rather than publishing their tawdry sex lives on the www.
The best that can happen is that they become a bit more educated about internet privacy. Y'know, like we try and instil in our kids. 
The OP of the bride one was perfectly happy to drop her hilarious updates into the thread for 24 hrs before the press ran a brief clickbait article. She was then happy enough to start another thread whinging about how her friend was pissed off at her.
Some people just need their internet privileges taking off them tbh. Till they learn they can be trusted with them.