Word choices, can often tell us more about the speaker than the content of their sentences do.
I'm sure that all sorts of judgments are made subconsciously and consciously based on word choice.
A run on sentence, that doesn't say anything in the end, might be indicative how this person operates generally. Cluttered mind - cluttered life.
Although I may make negative judgments when people have a poor vocabulary, I also make adjustments to my speech which make it easier for them to follow.
On an international forum such as this, it is quite possible that people we are speaking to, have a first language that is not English. Those folks know at least two languages. Like most north Americans, my only language is English. I should be good at it and make sure to use the simplest language possible, when communicating with anyone who is learning and struggling.
My wife, having spent the last 3 years in West Virginia, sounds like a native. Right down to when she asks for someone to do something she'll say, "If you don't care could you...."
Word choices are amazing.
Something else amazing are our preconceived perceptions. I was talking to a blonde haired blue eyed man today. My perception from his accent was he was French. My stereotype was blown to bits when I found out he was an Iraqi.