Only 10 lines out of 24 are presented for obvious reasons. That is, one line is one word. And I also want to add that the pattern about 3 lines with 11 and two with 1 does not fit. Because then from line 15 to line 22 there are only 11.
You should quote the person you are replying, so that the person would be notified to know that you have responded to his or her questions or confusion, to enable the person respond to you, for clarification of any doubt. If you just reply without quoting the person it might take days or weeks before the person respond to you, because you can't tell when the individual will check the thread to respond to you.