Someone in the reviews metioned this:
Outputs an invisible link from your site
By AmirLatypov, March 14, 2014
In the page views/contact-form.view.php on line 2
<div class="cscfVersion" style="display:none;"> <a href="http://www.megnicholas.co.uk?version=<?php echo urlencode($version); ?>">Clean and Simple WordPress Contact Form by Meg Nicholas - WordPress Developer</a> </div>
I would think this should not have style="display:none;" but rather a check box in the admin to turn this link on or off to link back to the author. I do not know about the rules for creating wordpress plugins so please tell me if i am wrong.