BTW, my sponsor joined under Veronika Česalová, the owner of biggest
PTC/Online earning web pages in CZ/SK.
I am really not worring about referrals at all 
For you it is easy to have referrals, but for many people having referrals is a real problem.
The problem with this type of investment is that you depend a lot on the goodwill of other people (referrals) and the goodwill of the program managers.
Many people register at these Matrix sites, pay the membership fee and can not get referrals and the money ends up with the administrator
That's why I said that these matrix sites are only profitable for the creators of the site
I understand and agree with most of what you say.
Two weeks ago I registered with a matrix site, I have never done it before.
I have been around Bitcoin for quite a few years, I am aware of all the scams.
The reason I registered was for fun, if it works, OK, if it doesn't work I have lost 0.001/BTC. To me, this is not a life threatening amount.
To my surprise it has been functioning extremely well.
My first referral appeared the next day, second referral the following day. My 0.001/BTC was safe.
Each and every one of those below me are receiving referrals/upgrades within a couple of days.
The site has been averaging 500 new members every day.
I realise many people have their hopes built up expecting exceptional returns in a short period of time, this is not the case.
To me, with my short experience with matrix I thought I would give it nine months. If I could average one new referral/upgrade every day for a nine month period I would reach the target. From 0.001/BTC to 1,024/BTC is an exceptionally good return on your investment.
Many are being introduced to Bitcoin because of these schemes, to me, that is good. If they lose a dollar here and there they will learn to be more aware in the future.
I certainly do not like people being scammed.
Unfortunately, the bad actors in the Bitcoin space are giving the good actors a hard time, that's life wherever you go.
There are so many in this world that deserve a better life, they have suffered through no fault of their own.
I do hope that Bitcoin or any crypto currency will create a brighter future.
I have just re-read he OP, I would certainly not be donating those amounts of BTC, much too high.