[kh99]

Since the template tags aren't really html, the html comments don't work to comment them out. There is a vb:comment tag you could use:

<vb:comment> NEXT LINE COMMENTED BY SNOWHOG 2012-11-18 
	<vb:if condition="$show['avatar']"> 
</vb:comment>

<!-- NEXT LINE ADDED BY SNOWHOG 2012-11-18 -->
<vb:if condition="$bbuserinfo[userid] == 1816 OR $show['avatar']">

Also, I only added "$bbuserinfo[userid] == 1816 OR" so all you have to do is remove that when you're done.