I'd like to give zpool a try, but when I try to register on hashtap it says captcha not available and try in a couple days. Am I doing something wrong?
No there's nothing wrong on your side. It's still a mystery why my captcha on that screen is broke. The code is the same as the dev who maintains it except for some unknown reason my captcha image started being generated with some sort of empty space at the beginning causing browsers to reject it.
Haven't figured out a workaround yet.