Google reCAPTCHA?

I appreciate the logic behind not using this, but still think it would be useful as an OPTION. Options are good, choice is good 🙂

That way, those of us who only want a single form on a page can use it.

To cover support, just add an extra compulsory checkbox to config, confirming that users know that only one per page is supported.

Then ignore any requests that ask this question.

This sounds like a win win to me: thos who are ok with the restriction can use it. Those who are not, can use the other method.