now it's over 4000 claims/s

on average every user solves a captcha in 5 to 10 seconds (500 to 600 captchas an hour) due to captcha difficulty and server speed to show a new captcha, but currently there are like 10 thousand people claiming, so the rate should be something like 1000 to 1600 claims/s at the most... bots attack again I'm guessing