>>16067539Shame. But actual math captcha has been done on other imageboards before, and it does indeed work pretty well as an IQ filter. The best way to have it not annoy posters is to have it be a fairly simple formula, that once you get the hang of makes it as easy as text captcha. It'll keep out anybody who can't comprehend how to do it at first sight, but not be a total annoyance for every post that you want to make.
That's also just simply redundant if it they keep repeating the same questions over there, because even if somebody can't solve the questions, they can go by trial and error with ban evasion until they put down all the right answers somewhere. Pretty shit math captcha for mathchan.
