Where to remove the post br element?

As this forum is all about content quality I hope it would be ok to ask this here as well.

Just a random post snippet

<b>Definition List Title</b><br />
This is a definition list division.<br />
<br />
<b>Definition</b><br />
An exact statement or description of the nature, scope, or meaning of something: <i>our definition of what constitutes poetry.</i><br />
<br />
<b>Ordered List</b><br />
<ol class="decimal"><li>List Item 1</li>

<li>List Item 2<ol class="upper-alpha"><li>Nested list item A</li>
<li>Nested list item B</li>
</ol></li>
<li>List Item 3</li>
</ol><br />
<b>Unordered List</b><br />

Where to remove the post br element - vBulletin.org Forum

The ONLY time you should use a <br /> is within a line of text with a line of text following it.

Code:

<p>this is line one<br />
and this is line two</p>

in all other cases, margins, padding, line-height, etc should use used on the container elements.