Exactly so.
It’s a classic example of what we psychologists call the “two groups syndrome” or “two groups fallacy”.
There are two very different - and sometimes, in fact, diametrically opposed - consensuses of opinion, on such subjects, and which one you’ll always hear depends on which group you always ask.
People feel, in principle, often for good reasons, that a very big sample size will produce a more reliable (i.e. “more likely to be right”) consensus of opinion.
As any statistician will tell you, that’s normally valid and correct reasoning, but its validity and correctness actually rest on the hidden assumption that the two groups are randomly drawn from the same population. In this case that isn’t so, so the whole thing is actually nonsense and therefore produces mistaken conclusions.
What happens here - and with many similar issues - is that there are two different “populations,” (i.e. not two different randomly selected groups within one population): there’s a really huge group called “People who’d like to trade successfully and safely with steady profits” and then there’s a really tiny group called “Successful traders”.
These two groups of people very often have strongly opposed opinions about the key issues involved.
If you just ask as many people as possible, you’ll always go away accepting the widespread (but often ill-informed) consensus of opinion.
This is, in effect, what happens in forum discussions, without most participants appreciating that it’s happening.
If, instead, you start by correctly identifying the very small group of long-term successful traders (this is really very difficult to do, and professional marketers, among others, aim to keep it that way!!), you’ll form the opposite impression.
This situation has many occurrences and applications, especially in the social sciences, but in other areas of everyday life, too.
It’s always a possibility when you ask for advice on “How to do something successfully” which only a very small group of people do successfully.
The chances of asking the wrong people are obviously enormous.
And with anything involving “How to make money from something” they’re even more enormous, because most people instinctively but in this case unwisely go to the web for information, typically not appreciating that it’s much easier for the “teachers” to make money from “teaching” than it is from trading. And that’s why there’s so much more misinformation around than information.
Correcting this problem, in this instance, all starts by understanding with total clarity that people who can trade successfully and safely for the long term, accumulating profits steadily and reliably, are NOT people who spend their time posting videos on Youtube, and that there are valid and good reasons for that. Most people never get that far.
All of this was really just a verbose way of pointing out that the most important decisions you can ever make about learning how to trade profitably are the “Who to listen to” decisions. 
No charge for this lecture and apologies for its length. 
