Agent Contact Form Captcha

I am really not sure why this is not a thing on the broker/agents pages. 
The contact the agent email form on their pages REALLY should have a Captcha setting.  Spam protection on websites is a very big thing and this is missing.  Even checked your demo and its not on the Agent pages their either. 

Thanks

OK, in next OS Property version, we will consider to add Captcha in Agent contact form
Thanks
Dam