Textarea and Input vs Textbox
<p>I noticed on a few places (mainly Youtube's comments), there are "textbox" instead of the normal "textarea".</p>

<p><code>&lt;div role="textbox" aria-multiline="true"&gt;&lt;/div&gt;</code> vs <code>&lt;textarea&gt;&lt;/textarea&gt;</code></p>

<p>Also I see <code>&lt;div role="textbox"&gt;&lt;/div&gt;</code> instead of <code>&lt;input type="text"&gt;</code></p>

<p>Is there any functionality advantages to use <code>role="textbox"</code> instead of <code>textarea</code> or <code>input</code>?  Or is this just pure preference? For example, is it easier to modify or edit using Javascript?</p>

<p><a href="https://i.stack.imgur.com/dwDWL.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/dwDWL.jpg" alt="YT comments1"></a></p>

<p>As you see above, I am selecting the comment box with Chrome's inspector.</p>

<p><a href="https://i.stack.imgur.com/c1wtx.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/c1wtx.jpg" alt="YT comments2"></a></p>

<p>Now I added text to the comment box, and the text appears inside the div element stated above when viewing Chrome's inspector.</p>