Hey Alex, one suggestion, the HCaptcha challenge box is way to tall, sitting at 725px, it's larger than the chrome viewport on a 13" MBP, so I have to keep on scrolling up and down to solve the captcha.
You would not believe how much we think about these things. We appreciate the feedback and will continue to tune for every puzzle. Thank you so much for the feedback.
can you get 4chan to start using hcaptcha, I can't tell you how much I hate Google recaptcha. not to mention the brainiacs at 4 Chan have figured out how to solve Google's recaptcha easily.