Question: is there a way to disable certain bb codes for Anonymous posters as well?

Answer: of course, there is a way. Inside bb_codes.php file, in enCode() function, the following type conditions must be placed:

if($GLOBALS['user_id']!=0){

/* Only members BB code here for $pattern[] and $replacement[] */

}


If you want to disable certain buttons also, there is no way to do it easily except if you define each button's HTML in bb_plugins.php file with some kind of the following code:

if($user_id>0){
$buttonUrl=<<<out
<a href="JavaScript:paste_strinL(selektion, 4, '[url='+prompt('URL:','http://www.your-url-here.com')+']', '[/url]', '')" onmouseover="window.status='{$l_bb_url}'; return true" onmouseout="window.status=''; return true" onmousemove="pasteSel()"><img src="https://www.minibb.com/forums/img/button_url.gif" style="width:23px;height:22px" alt="{$l_bb_url}" /></a>&nbsp;
out;

$buttonImg=<<<out
<a href="JavaScript:paste_strinL('', 3, '[imgs='+prompt('URL:','http://www.url-to-your-image-here.com/image.jp g')+']', prompt('{$l_promptAlt}','')+'[/imgs]', '')" onmouseover="window.status='{$l_bb_image}'; return true" onmouseout="window.status=''; return true"><img src="https://www.minibb.com/forums/img/button_image.gif" style="width:23px;height:22px" alt="{$l_bb_image}" /></a>&nbsp;
out;

}

then paste {$buttonUrl} and {$buttonImg} (or other vars you may define) into templates/main_post_form.html file, instead of straight HTML provided.

Thanks a lot Paul for the info, it works like a charm! ;-)

Another quick question:

Is there a way to disable smilies for Anonymous posters as well? Or does the above code to disable BB codes work for smilies too.

Nope, above code won't work for smilies.

I think, for disabling smilies, you need to modify smilies addon code itself. Most probably the part for bb_plugins.php file... condition is the same.