<p>I would search for more meaningful posts at Meta. But a quick experimentation showed this:</p>
<p><span class="math-container">$\bullet$</span> Downvote:</p>
<p><a href="https://i.stack.imgur.com/hg4V1m.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hg4V1m.jpg" alt="enter image description here" /></a></p>
<p><span class="math-container">$\bullet$</span> Result:</p>
<p><a href="https://i.stack.imgur.com/b9DEmm.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/b9DEmm.jpg" alt="enter image description here" /></a></p>
<p><em>Waiting for <span class="math-container">$15$</span> minutes...</em></p>
<p><span class="math-container">$\bullet$</span> Subsequent upvote at another post:</p>
<p><a href="https://i.stack.imgur.com/dHRJNm.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dHRJNm.jpg" alt="enter image description here" /></a></p>
<p><span class="math-container">$\bullet$</span> Result:</p>
<p><a href="https://i.stack.imgur.com/dVY0jm.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dVY0jm.jpg" alt="enter image description here" /></a></p>
<p>(NB: All the votes have been undone after sufficient time.)</p>
