to more eloquently structure and refine what's being communicated
To that end, you should avoid run-on sentences. Cramming all your thoughts together into one sentence
(as you did in your second paragraph) really harms intelligibility.
Also the comma in your last sentence, between "there" and "doesn't", is incredibly awkward and does not belong.
There are no run on sentences in the post you responded to with this. Particularly, the long sentence you call out is not a run-on, just a long sentence with complex structure; it has an unnecessary comma—the last one—but that is different than being a run-on.
To that end, you should avoid run-on sentences. Cramming all your thoughts together into one sentence (as you did in your second paragraph) really harms intelligibility.
Also the comma in your last sentence, between "there" and "doesn't", is incredibly awkward and does not belong.