user19679: I want to delete my account, is that possible?

user3624: Yes, its possible through two different ways:

If you have posted only once, you can self-delete the account from your profile page, see How do I delete my account?. 
If you have posted more than once or voted, you can request deletion through the contact page (select "I need to delete my user profile" in the drop down menu)

Also see this meta.stackexchange post.
Why do you want to delete your account?

19679: <p>I want to delete my account, is that possible?</p>
 3624: <p>Yes, its possible through two different ways:</p>

<ol>
<li>If you have posted only once, you can self-delete the account from your profile page, see <a href="https://biology.stackexchange.com/help/deleting-account"><em>How do I delete my account?</em></a>. </li>
<li>If you have posted more than once or voted, you can request deletion through <a href="https://biology.stackexchange.com/contact">the contact page</a> (select "I need to delete my user profile" in the drop down menu)</li>
</ol>

<p>Also see <a href="https://meta.stackexchange.com/questions/5999/how-can-i-delete-my-account">this meta.stackexchange post</a>.</p>

<p>Why do you want to delete your account?</p>
