I think there is some confusion here. I will clarify, but please don't get offended.

For your first point, no, they were wrong, I did very well on bitcoin - hence my example.

For your second point - I am confused - I agree senior developers know what they are talking about, I was one for nearly 2 decades. I was referring to peers not superiors. I was saying I have encountered narrow mindedness and ignorance. I did not say that is all I encountered. I also encountered kind, intelligent, superior and inspirational people.

Edit> On second thoughts - I re read your comment - Who downvoted you? When? Was it in regards to this article?

What on earth are you talking about?

Are you chatgpt?