"That's a call for good teachers who are willing to crack down on the class clown. There's always a class clown, and he always needs to be cracked down upon for the good of the class. This is teaching 101. Sorry you didn't have a good teacher."
Most of the people who lecture at these events are programmers, not folks who have a masters in teaching along with their state certification.
I think teaching 101 covers widely discredited education theories (stuff like Myress-Briggs, visual auditory and kinesthetic learning styles, and the like) rather than practical teaching tips. There's a practicum to teach them how to teach.
I mean if you actually get a masters in education, it's almost all practical stuff. You need to take entire classes on things like how to write on a chalkboard and how to spot kids who are being abused at home. Educational theory and research is only one or two classes out of the two years. And classroom management is one of the biggest topics, and it's the first thing you get evaluated on when you're doing your student teaching.
Not the masters in education I have. I heard tales from very old timers about having to take "write on the chalkboard" classes, but that was never even brought up for us. Though frankly, that specifically should be. Maybe not a whole course, but a few days of it. There are a lot of ways to get that wrong.
But back to your point. My degree is from a university in Boston and helped me get my teaching license. Almost everything we covered was theoretical and, with a few important exceptions, utterly useless.
Certification and ability are different things. Contrary to popular belief, certification does not magically endow somebody with abilities, it only (slightly) raises the chances that person possesses necessary abilities. However there are a lot of people perfectly capable of teaching without certificates, and, unfortunately, plenty of people with certificates totally incapable of doing so.
Looks like the author of the article was either incapable or unwilling or unprepared to perform one of the basic teaching functions - ensuring that jerks do not disrupt the process for the rest of the group. It may stem from inexperience - well, that's what experience is for. One doesn't need masters or certificates to learn such things though, it's perfectly available to any common person.
"It may stem from inexperience - well, that's what experience is for"
Can't speak for US, but in UK a large part of PGCE courses is devoted to reflecting and acting on experience gained in a supervised teaching placement.
Sometimes you need to dig a bit deeper to process the experience, my favourite out of date theory is Schon's single and double loop learning.
For coders: single loop learning is when you change the way you name variables or re-write your code to make the logic clearer. Double loop learning is the stuff Michael Lopp writes about.
Most of the people who lecture at these events are programmers, not folks who have a masters in teaching along with their state certification.