Denied If recaptcha is needed for registered users, can you please only use it once

Understood. However the way you are forcing all members regardless of how many posts they have made to use the captcha repeatedly discourages them from logging in.

If I may ask, do you have to pass the captcha test when you log in - or is it only for members in my category?

My example for a good captcha practice would be Namecheap. Namecheap has a way where they can recognize a person who is logging in with the wrong password and only applies the requirement for captcha when (a) the member is using a wrong password or (b) the password is older than six months. That makes good sense for me. Applying the captcha regardless is equating all members, regardless of their good standing with nulledbb in the same class of distrust. I can't see how that would be good for the forum.