If you have a more tag and a comments link on every post, and of course a post title, you have three different links pointing to the same page. This can affect your rankings negatively (again, because Google may think these links point to different pages).
To remove the “#more” text from your ‘Read More’ link, replace the following line in your wp-includes/post-template.php
$output .= ' <a href="'. get_permalink(). "#more-$id\">$more_link_text</a>";
with
$output .= ' <a href="'. get_permalink()."\">$more_link_text</a>";