Not jealousy, l am not a regular on the forum due to my perfections.

I think it's part of human nature to feel down when they see someone whom they tend to be equal doing better than them. Sometimes it is jealousy, sometimes it is just resentment for oneself .
But the truth is it can feel that way a lot more times than you imagine.. it's not just about the forum but in everything else, in academics, business, finance and every aspect of life you tend to have this thought that you are a joke. But let me tell you one thing. The result is dependent on how you react to it. For example, instead of leaving, if you took that as a challenge to get better yourselves, to grow so much in the Bitcoin space and ask relevant questions and gain clarity, you too would have been able to gain the same knowledge you saw in them.
Most people you may see as newbie may be new to the forum but not to Bitcoin. Not everyone is aware that a forum like this exists. Just take it easy with yourself. Whenever you see something like that, read the post, gain as much knowledge you can from it and let it stick with you. Study more in it and you too will grow matured also.