On occasion you get a newbie that will be obnoxious simply because that’s all they’ve seen on the net. You know what I’m talking about, there’s plenty of it out there.
If they are smart enough to see it draws a negative reaction and tone it down, they just might have something of value to contribute.
I’ll defer to the elder geeks and their experience in spotting bad apples. But, when the spaceship door opens and you blast away with a 12 gauge the minute they show, you might miss out on a wonderful anal probing.