In most cases combination of "no brand new" and "registered X weeks" more than enough.

Perhaps you are just one exception, but believed me, there will be a lot of people who will just registered here in a day and would just take advantage of the mechanics of the game.

I would give you one example and I'm sure  Hhampuz can attest to it, I'm not sure if it was late 2018 or early 2019 wherein Hhampuz open a survey thread and he paid those who participated in bitcoin, not that big though, but still in bitcoin.

And then it was exploited with lots of 'brand new' accounts trying to take advantage of it. I'm sure Hhampuz caught a few who try to get away by exploiting. But my main point is that it will be abused. So the merit requirements is a good thing to deter cheaters.

How many weeks should be in your opinion?
I think it should be months, six or nine months is appropriate requirements, if the criterion included.
However, I don't support such criterion, because it might be not effective.

Damn, indeed this is a huge amount to earn as an affiliate. I'm not familiar with him, is he a bitcoiner here in our forum?

So it's very interesting, what method this guy uses to attract his fellow gamblers to sign under him. Obviously, I did sign under his ref code, but this guy is a pure genius. 

But since some social media sites are banning those referral links, so that's also a hell of a work, don't you think? Or possibly he had some friends whose also a gamblers that he might have invited during the event. Besides what they earn is also yours to be exact, with that 100% referral bonus coming from the house, even if its only a few, as long as they have bigger investments and winnings the possibility is still there.

Not an easy money I think.

This is a rather big amount just for referrals signing up using a code. I know of bigger casinos give such payments but only if the ones who are signing up spend a certain amount on the site then they payout the referrer. But we are talking over 1btc from referrals playing on their site not just for the sake of signing up.

Some sites require making deposits to be able to withdraw fauceted money as well as money from referral code.
Anyway, the amount of money that the lucky referrer received (maybe received, because I did not know that guy already withdrawn or not) is big for such easy works.
Of course, he might get such money because he has a big community behind in his local areas, nations, so in reality, it maybe not really easy works.

Asking for deposit before able to make withdrawal from faucet betting only is indeed a common thing but if it is for referral earning then I think it does not make senses. Affiliate are helping the site to advertise the site, so they should be able to withdraw their earning from affiliate commission without any restriction as long as they are not doing self-referred.

It will surely decrease out abusers.I don't have track on the current situation though.

with that amount on a short span of time is no joke.Lots of people signed under his ref link.
As an affiliate there are lots of mediums on where you can spam out your link specially on social medias.

Giant referrers often have their own high traffic sites, or good communities behind.
Once again, looking at the rewards from reffereal, that is huge rewards, in area of affiliate and within some weeks.
Huge money during not too long period, it should be called as Rocket affiliate.