[kh99]

Warning: try this at your own risk - back up your database first. There is no "are you sure you want to do this message". You have been warned.

I only did one test to see if this worked at all (on vb 3.8.3 - I have no idea if this will work for vb4), but here it is: make a plugin using hook location admin_maintenance and this code:

if ($_REQUEST['do'] == 'deleteallalbums')
{
    require_once(DIR . '/includes/functions_album.php');
    print_dots_start("Deleting all albums ");
    do 
    {
        $albuminfo = $vbulletin->db->query_first("
		SELECT album.*, user.username
		FROM " . TABLE_PREFIX . "album AS album
		LEFT JOIN " . TABLE_PREFIX . "user AS user ON (album.userid = user.userid)"
	    );
        if (!$albuminfo)
        {
  	    break;
        }
        $albumdata =& datamanager_init('Album', $vbulletin, ERRTYPE_STANDARD);
        $albumdata->set_existing($albuminfo);
        $albumdata->delete();
    } while (1);
         print_dots_stop();
	print_cp_message("Done.",
		defined('CP_REDIRECT') ? CP_REDIRECT : NULL,
		1,
		defined('CP_BACKURL') ? CP_BACKURL : NULL,
		defined('CP_CONTINUE') ? true : false
	);
}

Then when you're sure you're ready to try it, type in the url [your forum]/admincp/misc.php?do=deleteallalbums .

You probably now want to delete or at least disable that plugin.

ETA: for anyone who feels like confirming it's legit - I used the code from the file album.php, the "do == killalbum" section that gets called when a user deletes an album. The first query I got from fetch_albuminfo() in includes/functions_album.php (but I removed the WHERE for the userid).