Earlier quoted context omitted.
It's so easy to look words up in a dictionary these days, but for some reason the tech community likes to take a perverse pride in reading at an 8th grade level. "How dare you use a word that happens not to be in my limited vocabulary?"
It is the mark of a charlatan to explain a simple concept in a complex way.
The sad thing is that none of the words in the quoted passage are obscure at all. If you don’t know at least most of these words, it’s safe to say that you have a poor vocabulary. This is really, really easy to fix if you just change your attitude. Instead of being angry with someone for knowing more words than you, just look up the words that you don’t know.
Then you can respond to what the person is actually saying, instead of unfairly assuming that they're a charlatan.