The component is good and does exactly what is required. But this has a security threat, Registered users also can create users from frontend bu just typing the URL : http://yoursiteurl/index.php?option=com_adduserfrontend&view=adduserfrontend
These are my questions to the developer :
Also, can we have some captcha code integrated with it? Why are there no configuration options in the backend.
Will try to implement what I have mentioned
Well just like i wrote in the description text of the component: "always publish it with the menulink set to special, otherwise anyone can add users to your website!". If the menulink to the add user frontend component is set to special, just typing the URL : http://yoursiteurl/index.php?option=com_adduserfrontend&view=adduserfronten wont get you anywhere. Why do we need captcha? This component is intended for usage by Administrators. Why force them to fill out captcha?