Do you know captcha? That great invention that minimize the spam registration? Well, there is a sort of a captcha that show that you are a human if you solve a simple equation, like 4+6= (and your write the result).
This is a filter for the people you want to deal with, combined with their urgency to contact you.
Imagine how funny it will be to have a captcha as a complicated equation, with radicals, large numbers, comma and stuff. And you can send the message only if you enter the correct result of that equation 🙂 It’s very funny. Maybe I’ll do it sometimes.
