Do you believe that removing a graphic that is 2kb and that is being cached from the browser is going to solve your problems?
find the following code
{readon}
<div class='write_comment'>
<a href="{READON_LINK}#JOSC_TOP" class="readon">{READON_WRITE_COMMENT} ({READON_COUNT} {READON_COMMENTS})</a>
</div>
{BLOCK-preview}
<div class='comment_preview_container'>
{preview-lines}
</div>
{/BLOCK-preview}
{/readon}
and change the readon class to something else
for example
{readon}
<div class='write_comment'>
<a href="{READON_LINK}#JOSC_TOP">{READON_WRITE_COMMENT} ({READON_COUNT} {READON_COMMENTS})</a>
</div>
{BLOCK-preview}
<div class='comment_preview_container'>
{preview-lines}
</div>
{/BLOCK-preview}
{/readon}