Many sites like these (skybtc as an example) have turned into a scam very quickly and end up not paying but really I have to ask, are these sites even worth your time/investment even if they do pay?
I know it's a faucet, and all faucets require a lot of manual labour just to make a little bit of btc, but you have to invest 0.1 btc (fair amount) to be able to get the over 300 satoshi a minute mark. And every time you invest, no matter what, in order to be able to make profit and not lose your earnings, you must always be ready to collect when the maximum is hit. That means checking it regularly, not to mention it could just shut down at any point. I think that using a faucet rotator would probably be a better way to make a few extra dollars as it requires no investment and if the faucets shut down you don't lose anything.
Plus if you're looking to get 0.001 btc in a day, there are so many pop up faucets around now that you can get in about 30 minutes.
So really, if you have no job and nothing to do all day and are ready to collect your earnings 24/7 but risk losing $40 ish dollars then go and invest but really I'd spend that time getting a job you can earn a lot more faster without risk

upgrade is not required and soon we will introduce some free bonuses and other promotions that also caters to free members.
we only ask that you use our site with your adblockers turned off so we can get the ad revenues to continue powering the site healthily. we don't offer popups or anything annoying like video ads. just plain banner ads and you dont even need to click.
Totally understood, but when you don't invest the earnings are quite low while the minimum pay is high in comparison. (I think it's like 50,000 satoshi and while that's not a lot of satoshi, when you're earning as a free member it's nothing)
So, again, you'd have to sit on this site for literal hours in order to get close to the payout when you can use any faucet rotator for about 30 minutes and get 0.001 btc.
So really your site is only profitable if you invest, otherwise it's a mere waste of time. However even with investment, while you'll still be earning a lot, you must commit a lot of hours to earn a few extra dollars.
Really depends on the person but you're risking a lot, and working a lot, just to get a little with these types of sites.