Reminds me of the sound advice I am glad I got early in life (whilst still in college) from a book called "Work Less, Play More" by a petroleum geologist named Steven Catlin[1]. Play the games on your terms if at all possible. And save yo monnay!
1: http://www.swt.org/play.htm (brief and pithy overview there; should be all you need but I recommend reading the whole thing in a weekend)
Usually it’s good. It means short and to the point in most contexts. Maybe things can be too pithy, if they’re so short that they’re incomprehensible. But it’s much better than meandering and off topic.
I wouldn't say it's necessarily good. If you think of TV when a character says something as they're leaving a room and everyone goes "ooohhhh". That's a pithy comment. Something like:
"Hey baby, you looking for a real man for tonight?"
"Yeah, let me know if you see one!"
Good to be pithy when you're dealing with obnoxious drunks in a bar. Maybe not so much when talking with your boss.
1: http://www.swt.org/play.htm (brief and pithy overview there; should be all you need but I recommend reading the whole thing in a weekend)