Oh, waah, waah. It doesn't require registration at all; it just doesn't let you post with a blank "Name" field. Thirty second Ochiba hack to allow anonymous posting:
includes/post.php
Find line 53:
array_push($errors,$ERRORS["namerequired"]);
Replace it with these two lines:
$name="Anonymous";
setcookie("name",$name,COOKIE_EXPIRES);
Note that I haven't actually tested this, but I don't see why it shouldn't work. Either way, you can still just put random characters in the "Name" field. That's nothing like a reg-only board.
>>18
it will still give you an obnoxious Javascript warning when you post, to the tune of "Are you SURE you don't want to add a tripcode to your post? Using a tripcode gives you access to fun added features such as constant flamewars about your character! Click 'OK' to generate a tripcode for you and attach it to all your posts, or 'Cancel' to just stop posting because you're not good enough for my image board."