Why the bold sentences have so many commas?

[Bhikkhu1991a]

Hello,

Do you know why the bold sentences have so many commas in the following excerpt?
Does the author use the commas to show pauses?

ESL Lesson: Conditionals
"On Condition"

My parents said to me one morning: "If you don't relax, you'll end up having a nervous break down. If the post does come, there's, nothing you can do about it. If I were, you ... " but I didn't listen to the rest of the sentence because a thought had come into my mind. Supposing I were, mad, supposing I didn't know, who I was, supposing I pretended, that I didn't understand a word anybody was saying - surely the Queen wouldn't want, a madman in her army. I tried it for a few days but it was too much like hard work. You can imagine the comments: "If you're, trying to get out of conscription by pretending to be barmy, just forget, it because it isn't working ... if you honestly imagine, that your mother and I are taken in by this stupid behaviour then you are, very much mistaken.

http://www.english-test.net/lessons/13/index.html
Author: Alan Townend

I look forward to hearing from you. Thank you.

Best wishes,
Bhikkhu1991a

[Mister Micawber]

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It seems to be some glitch in the way the text was input, Bhikkhu. Many of the commas should not be there, and I am sure that Alan will edit them out as soon as he finds this post.
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Native English teacher at Mister Micawber's