Ok, so we use our own Review application for products, yet the default 'sort by' drop-down box contained sort by reviews. Since there is no way to disable that option from the admin console, we built a script to remove it.
$75 per site if you are interested (1/4 of the cost of the quote we received to have it done custom for us) , send me an email or respond to the thread with your email address.
Happy selling!
-Brian
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