ValidationMessageFor customValidationMessage parameter, Message is always displayed, unobtrusive

have you included these jquery libraries?

jquery-1.9.2.js
jquery.validate.js
jquery.validate.unobtrusive.js

If already, add this css style in page.

.field-validation-valid
{
    display: none;
}
.validation-summary-valid
{
    display: none;
}

http://stackoverflow.com/questions/23384372/validationmessagefor-customvalidatiomessage-parameter-message-is-always-display
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