as a previous reviewer has stated, there is just way too much spam to filter through, even with the use of CAPTCHA or reCAPTCHA. I don't have the time or desire to filter through 30 spam messages daily, amongst my other duties. Other than that the functionality isn't bad and it does what I need it to do... I just don't appreciate that it claims to ahve an anti-spam filter when it seems to generate more spam than i've ever gotten before!
We added some new SPAM protection in our latest RSMonials Version 2.1 for Joomla 3. Please check.