The limit for no captcha is $100. $50 gives full base reward. It doesn't matter where the balance comes from and the actual figure will be lower if your ratio of wagered to free winnings is high enough.

..... nobody forces you to buy power to mine, nor does anyone force the admin to maintain the same performance index.

There is no fairness in business, never was, never will be.
There's only a relation between demand and offer, where those offering goods or services for sale depend on finding someone demanding those goods or services.
If you don't like lower payouts, there's no point in complaining about fairness, you're free to go to some other place and see whether or not you can find a better offer.

Have you looked at the price of gasoline lately?
While prices for crude oil were rising, so was the price at the gas station.
Recently crude oil has dropped in price by roughly $30 a barrel, how much has the price of gasoline at the gas station dropped? Not at all?
Are you complaining about that not being "fair" or do you realize that being the simple law of a free market where the relation between demand and offer makes the price?

You think those who bought BTC at $20K find it "fair" that the price dropped to 3K by now?
Do you believe those who sold BTC at 20K last year should now be "fair" and buy back BTC at the same price?

What "should" and should not be is up to the site, not up to you.
What you calculate for ROI is of no concern to the site.
If you buy shares of BMW, you may check the dividend they paid in the past and calculate your ROI, but you do not get the slightest guarantee that they will pay the same dividend next year.

You seem to have a wrong idea of what this site is.
You do not have a contract with them that guarantees you a given payout, you're using a free service where they decide all by themselves how much they want to pay you for visiting their site.
You then decide whether or not this payout is enough for you to visit the site and out of the sum of all their users who decide every day again whether they find the site worth visiting the site then decides how much they want to pay to keep enough users.
You may make suggestions to the site, such as "if you keep payouts so low you will lose users and a site without users cannot make revenue from ads", but whether or not they will follow your suggestion is entirely up to them.

There are plenty of other faucets who did the same, not having enough users to cover their expenses, therefore reducing payouts, resulting in losing even more users and even less revenue from ads.
These sites open and close on a daily basis by the dozens and sites that get the point are quite rare, but that still doesn't give you any right to request a higher payout.

Compared to average faucets CMG has been online longer than most others, whether they can remain open while reduced payouts lead to a loss in users remains to be seen, but other than making suggestions there's nothing you can do, where those suggestions obviously have better chances of getting heard, the politer they are worded.

no answer?

when level 17-18 missions will be added?

anyone has receive on withdraw from today (friday) ?

last week i got 4 referrals from mission claim but number of my referral is same. where is my 4 referrals

I am also facing this problem for some time just because of this now I am not going on site daily because this captcha is not working and some time take too much time just because of this hurt too much they need to work on previous style with 2 or 3 captcha options which was very good and useful for all members