Investigating the Complexity of Academic Writing (theatlantic.com)
biohack writes: While the general public might expect that researchers should want to maximize comprehension of their work, academic writing tends to follow an opaque style permeated with professional jargon and complex syntax. Proposed explanations for the emergence of this style range from experts generally finding it difficult to be simple when writing about their expertise to more complex social and cultural theories: "Cynics charge ... that academics play an elitist game with their words: They want to exclude interlopers. Others say that academics have traditionally been forced to write in an opaque style to be taken seriously by the gatekeepers—academic journal editors, for example."
Publushing in high-ranking journals is often subject to various limits, i.e. 2500 words for an article, or 120 words for the summary etc. Having a conplex but interesting story to tell can then be quite challenging. Intricate language, with peer jargon, is often very compact. It's very rewarding to use it... :-)
I think this is basically correct. Another way to say it is that "simple" is not always clear. But good technical writers will make the text as simple as possible, consistent with clarity. I remember in my Chemistry 101 class I had written a description of an experiment. The grad student grading the work had written over my text "Make it sound more scientific!". and the professor who had checked the papers had written on top of that, "NO".
"He took a duck in the face at 250 knots." -- William Gibson, Pattern Recognition
The article raised an important point about scientific writing. However, as an early career academic I can tell you that my writing training so far has not been targeted towards writing for public reading. Why do scientists write? We write to get our results published in scientific journals which is the basis for an academic career, and we write grant applications to funding bodies so that we can get money to do research. Otherwise, I believe the majority of scientists would prefer research over writing. Anyways, in both of the above context, we are taught to target our writing to intelligent peers who may not be in the exact same field of research but can judge the significance of the scientific content and its contribution. There is no incentives at all to a scientist's career to target our writing towards the public. This is not to say that scientists should not improve on our writing style. I'm still learning.