How do I remove %%your signature%% from the petition?

Yes, this is an annoyance for some people and I am going to make it an option in the future.

To remove it you need to edit a PHP file.

First make a backup of your site or at a minimum, just the file /wp-content/plugins/speakout/includes/emailpetition.php

Now open that file in an editor. If you use cPanel open it in the file editor.

At about like 635 you will find

<p class=”dk-speakout-caps”>%%’ . __( ‘your signature’, ‘speakout’ ) . ‘%%</p>’;

Remove almost all the line, leaving just the last 2 characters

‘;

save the file.   That should do it.