Yes. If I remember correctly it was that if you deposited more than what you earned lifetime with the faucet's free rolls you had the chaptcha check removed. I currently only need to push ROLL to get the free hourly prize
It would be interesting to know if this is a fixed amount, like 400k, or simply more than I have claimed from free rolls - currently a lot less than 400k in my case.
Don't think is a fixed amount. I remember reading of a user some time ago which had his check removed by depositing and then eventually the captcha reappeared after many free rolls when earning from the faucet surpassed deposited sum again.