Given that reaching high ranks on this forum takes a long time, it is quite natural that during this time the user will gain some amount of new knowledge and, on average, will probably have more knowledge than, on average, a beginner. But these are all common words. In practice, it is much more important whether specific words will be accurate and reliable in a specific case when it will be important to you. And in this case, it’s better not to rely only on rank or something like that, it’s better, having received advice, to figure it out and make sure on your own. Even if a person is more experienced and understands the topic better, this does not mean that at some point he will not answer, being sleepy or not in the mood or not fully understanding the question.

It is important to learn from more experienced senior forum users, but it is also important to understand on your own what they are talking about.