I think it helps to give constructive criticism.

Musk is adamant that lidar isn't necessary. Many disagree and are voicing their opinions on that.

I also think his view that strong ai is around the corner is detrimental to the industry. He is overhyping things and potentially creating an expectation whose investments reality won't support.

So, when I spend time pointing out he is not an expert in the ai space, it is to soften his outlandish predictions in the space, and help bring a more realistic perspective on who is talking and who knows what they're talking about.

I think Musk will contribute something to the self driving and AI space, just not in the way he claims.

This is not formulated as constructive criticism. This is formulated as prophecies. "It will fail because...". "It can't work because...". Or formulated in the form of "I know better".

A constructive criticism would weight pros and cons, explain POV without condamnation and not make grandiose pronostics.

Odd that you would put quotes around things you made up and neither I nor the first comment in this comment-chain said.

Animats gave plenty of detailed constructive criticism, as did I. Neither comment could be simplified as you allege without leaving out important context.