We're not saying that such practices are right.
But they EXIST. And people KNOW they exist. People know that employers or potential employers may look at their profiles. And, depending on the job, decide that they don't want someone that they know is out drinking.
It's a "gotcha" world.
And people need to learn to live in it. That means use some foresight before updating the world on every aspect of your life.
"...everyone finally shut up, and the audience could enjoy the beginning of the Anatevka Pogram in peace."