WARNING: STRONG LANGUAGE AHEAD
How one sorts another as an idiot or an actual person largely depends on the behavior of said individual. If you want to test that theory, get a weird name and go on a coop server by someone who isn't completely unknown. Test this theory twice by behaving stupidly at first, like saying "how can i play? pls let me in" and insisting on asking the same thing when turned down, and once more by being more sophisticated in your wording.
You'll be surprised how proper grammar can make someone with a stupid name seem like a trustworthy person, and that speaks a lot for today's young people who sadly don't perish from sheer stupidity quite as often as expected.
Many times before i have been told to fuck off by people who wanted to run around in some map i was editing on and were rejected. Others don't quite get the message and keep asking to be let in, because they don't bother reading. On a few occasions i've seen people literally spamming and calling people names because they weren't given entry. Of course they were kicked. Some of them proceeded to reconnect spam afterwards. Truly a sad sight, and you can't blame this one on us oldfags.
Back in the old days (like any proper grandpa would say), masters were hard to come by. It was a world of noobs who were interested in the game and made friends with each other and didn't grief other people's work quite as often as it happens now. Knowledgeable people weren't too willing to share their wisdom with complete strangers, and that's perfectly fine. Only after several months of playing and asking did i actually manage to learn the command to claim master, and it felt good to not rely on someone else to govern the server i used to play on. I felt responsible for the power i could hold. You cannot say the same thing for the new players nowadays because most of them fall under the spoiled little brat category. The kind that you would punch in the balls for everything they whined about until they stopped being such little entitled bitches.
Those kind of people aren't following the example of someone else. They didn't see someone kicking others (themselves included) and thought "hey that's cool i should do it too even though i was kicked". They didn't need incentive to be dicks, they just like watching the world burn. Ignorance and lack of proper parenting (you didn't see people acting like that back when they used to beat you up every time you were acting like a fuckwad) tend to cause sad sacks of flesh like them to be born and plague the rest of us meatly lollipops.
People aren't born idiots? Perhaps. Some grow up to be. If you let peer pressure force you into bad habits like that then i'll immediately assume you have a weak character and are pants-on-head retarded. Depending on the severity of their stupidity i may bother speculating how often they were dropped on their head as a baby to warrant being so socially ill.
Monkey see, monkey do, they say. This world is riddled with monkeys.
Perhaps you should look up the definition of immaturity. You can't accuse us oldies of immaturity simply because we distrust newcomers. Weren't you raised by the notion to not talk to strangers? As a kid however you don't feel that way, you're way more trusting and innocent. We're hardened by age, experience. We've seen new people act in a manner irresponsible when we trusted them, we've had our hard work ruined, our names laced with expletives. And you dare make such an accusation so blatantly. You expect us to give people respect, but you must understand respect is not something that simply exists, it must be earned. You cannot expect someone who you've just met to be treated the same as someone you've known for years, it's common sense. Familiarity comes with time and respect comes with approval.
Our knowledge is to be shared with those who deserve it. If we don't think we'll be wasting our time explaining something to someone who doesn't listen, then of course we'll do that if we feel like it. Having a little fun with said commands is also okay since the person who does run them ends up learning something new, life lesson included. Do not forget that we are our own people and not staff to this game, so we have absolutely no obligation to spend time teaching someone. And if you think that's immature/irresponsible/whatever then i strongly urge you to insert a phallic object into your anal cavity and jump the rope.