MonsterBtc was a another non pay scam site. just like many other site on the [ Watch List ]. they look simple and easy with abnormally high pay rate. and high withdraw limit. I guess they never change this rate.
Those all want you stay claim more longer in this site. because they never want to pay you anything. when you notice this. you have spend many time on this site. and they already get the profit form the banner Ads.
Maybe they are the reason of Google AdSense suspend many Faucet site.
Anyway, they are scam and don't waste time on it.