

It is like you said. Its artificial value. Its value generated, by how much people are willing to pay for a share of it. And as you rightfully realised, its basically gambling. You can make predictions based on the current trend (what ever trend it may be),but its still gambling.
Its not about all users on ml, but about the quite big (or very loud) group of ml users being tankies. This phenomenon is so wide spread, that in most cases when you see a tankie somewhere they are usually coming from ml.