Thats precisely why HN is not reddit.

Well I still have serious doubts that majority of critics in this thread are aerospace engineers.

Why should that matter? Should we exclude all but subject matter experts in all discussions?

You don't need to be an expert to understand the limitations of rockets as a means of getting to space.

No but it would be cool if critics would adjust the language based on their realistic understanding of their level of expertise in the subject matter. Posting very arrogant and dismissive comments just because one had read a semi scientific book on the subject or watched a documentary is not very helpful.

For sure, agree with you here, and I just scroll past those comments that come off as arrogant and dismissive, maybe I down vote them. Definitely do a lot of up voting of those comments that are more in-depth critiques, in the hope they rise to the top and help sink the arrogance.

I have 100% certainty that Musk is not.

From the formal standpoint he is not, given his knowledge and expertise he pretty much is at least according to Space X engineers I know or that publicly spoke about it. There is obviously a very talented team at Space X and the things he presents are obviously a result of team effort.