Of course ACBL, does not allow it - but they do not own the bridge world. I live in the USA and our local bridge club allows it but we have to provide our opponents with a written recommended defense against it and of course we can't use it in any ACBL sanctioned events. So I am lucky to play in a progressive open-minded club.
Will ACBL ever allow it? Only if there are radical changes in its leadership. Too bad the existing leaders are not as open-minded and progressive as the Director at my local club. I should also pass praise to the members who play in my club. They are of the same progressive and open-minded nature as the Director and we have never had anyone object to our use of the Multi 2NT. Too bad there are many others who do not share that view.
Shugart23, if Multi 2NT fits into your system nicely, then play it - it really is fun and that's what bridge should really be about. You can play it in BBO (but not ACBL). As a courtesy to your opponents you may want to offer them a recommended written defense to use against it if they desire (we want them to enjoy bridge, too!).
Lute
