[AngelBlue]

If you want to let users hide their USERNAMES from guests browsing their posts, but still let them see the rest of the post, add the possible value "Anonymous" to the fieldXXXX checkbox options, then open postbit_legacy and find :

<div id="postmenu_$post[postid]">
				<if condition="$show['profile']">
				<a class="bigusername" href="member.php?$session[sessionurl]u=$post[userid]">$post[musername]</a>
				<script type="text/javascript"> vbmenu_register("postmenu_$post[postid]", true); </script>
				<else />
				$post[musername]
				</if>

Add before :

        <if condition="$post['fieldXXXXX'] == Anonymous AND is_member_of($bbuserinfo, 1)">
		<div id="postmenu_$post[postid]">Log-in or register to see author name</div>
        <else />

find :

	</td>
	<if condition="$show['moderated']">
	<td class="alt2" id="td_post_$post[postid]" style="border-right: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]">
	<else />
	<td class="alt1" id="td_post_$post[postid]" style="border-right: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]">
	</if>

add before :

</if>