Found the problem! 😁
More seriously, though, the issue is that so many people want an answer "in a sentence or two" and for it to build upon what they already "know". For example, let's say someone asks, "Why are my photos so noisy?" They want to hear, "The ISO you're using is too high" not "The photo is made with too little light. To get more light, you either have to increase the exposure time, which increases the risk/severity of motion blur, use a wider aperture (lower f-number), which will result in a more shallow DOF, and/or add in your own light (e.g. use flash)." Then, to make matters worse, you have trolls swoop in to muck up any chance, whatsoever, that the person might actually learn what's really going on.
It's not unlike the situation that plagues the US right now: to have a tolerant society, you cannot tolerate intolerance. But how, exactly, do you do this without it giving the appearance of censorship? Do you immediately move their replies to the dumpster? Do you flag them with labels such as "trolling", "misinformation", etc.? Because the person asking the question will like their responses much better than the correct responses -- they're so much easier to "understand".
The purpose of a forum is for people to share ideas and opinions. But it doesn't take many bad actors to ruin that, where by "bad actors", I mean outright trolling and willful ignorance. However, the question is how to deal with these, as they "slide in" to the threads in an insidious manner. For example, Porky's favorite technique is always to introduce "the exposure triangle" as a pretext to derail honest discussion.