<p>People have the privilege if deleting in order to be able to remove posts that <strong><em>need</em></strong> to be deleted. This is a quasi-moderation privilege so treat it with the same respect we do. </p>

<p>If we're talking about questions, the close system should be used first. This allows a poster to revise and reopen their question. And closing it without answers or positive score will see it <a href="http://meta.stackexchange.com/questions/78048/enable-automatic-deletion-of-old-unanswered-zero-score-questions-after-a-year">automatically deleted</a>. Duplicates feed into a SEO system which deleting can hurt.</p>

<p>If we're looking at answers, there's a bit more to do here in that it's far more common there's a "non-answer" posted in the answer section than a question asked that needs to be urgently deleted.</p>

<p>Save your votes for things that cause harm.<br>
Leave the "does no good" for the system.</p>