> There are a lot of less charitable formulations; why should other readers care about parent commenters insecurity? Does parent commenter not appreciate the work that goes into studying these topics? Was parent commenter told they were "smart" to often as a child and never learned to exert themselves academically? Etc.

You're missing the obvious interpretation -- jargonization of the sciences keeps people out and keeps the masses stupid. Math is particularly guilty of this -- more charitable fields use jargon that is at least semi-self-explanatory, words and phrases that, while jargon, do make sense if you deconstruct them. In Math, people are so arrogant that they discover something and immediately name it after themselves, so if you haven't had a topology class, you won't know that X person's name maps to Y concept. Good jargon can be pieced together with pure reason alone without knowing the names of the people who invented what. This isn't true across the board of course -- "gradient descent" is a particularly well-named piece of jargon, for example.