[Oblivion Knight]

I decided to merge this with the built-in thread subscription image.
My users are automatically subscribed to all threads they post in, with no e-mail notification.

Ignore the template edits, and do this instead..
Find:

					<if condition="$show['subscribed']"> <img class="inlineimg" src="$stylevar[imgdir_misc]/subscribed.gif" alt="$vbphrase[you_are_subscribed_to_this_thread]" /> </if>

Replace with:

					<if condition="$show['subscribed']"><if condition="$show['threadcount']"><a href="showthread.php?$session[sessionurl]goto=lastupost&amp;t=$thread[threadid]"> <img class="inlineimg" src="$stylevar[imgdir_misc]/subscribed.gif" border="0" alt="$vbphrase[you_are_subscribed_to_this_thread]" /></a> <else /> <img class="inlineimg" src="$stylevar[imgdir_misc]/subscribed.gif" alt="$vbphrase[you_are_subscribed_to_this_thread]" /> </if></if>

Working on vBulletin 3.8.3..