you just hit the nail on the head. here's the thing, most of us don't talk about all aspects of the industry, especially those of us who don't tattoo. it's kind of like a secret recipe, you might get most of the basic ingredients, maybe even their amounts, but the spices or the signature ingredient is left out. because why pay for the milk if you can get the cow for free?
most of us (at least i think) are perfectly fine with not knowing every single detail about what it takes to make a tattoo if we're not tattooing. there are aspects of the industry that i'm curious about, and if i asked an artist in person about them, i might even get an answer, but if i was told "sorry i'm not going to answer that", then i would respect it and back off. while your statement about the internet is true, that you can learn just about anything from searching around, this community is not the answer to all of your questions, and if someone says "no" then you should also respect that there is a reason why they said "no". it's ok to ask, and i agree, if you're new to something, you may not be aware of boundaries, but when someone says to "stop", then you should stop. this goes to most situations in life, online and off.