<p>There are minimum reputation levels to earn the privilege to edit: 100 to <a href="https://stats.stackexchange.com/help/privileges/edit-community-wiki">edit CW posts</a>, and 2k to <a href="https://stats.stackexchange.com/help/privileges/edit">edit non-CW posts</a> (and 20k to <a href="https://stats.stackexchange.com/help/privileges/trusted-user">edit tag wikis</a>).  There is no minimum to <em>suggest</em> edits, however.  </p>

<p>The suggested edits just need to be approved by reviewers like you and I.  When you are reviewing edits, you have several options: one that I use in cases like you're describing is the <code>approve and edit</code> option.  From there, I just delete the added 'thanks' and approve the rest.  Of course, if the edit is completely incorrect, you should feel free to reject it.  </p>
