Bitcoin is a virtual currency, it has a high level of security, in addition, it also has a freedom, so we can not find out who sent the funds. That is a good thing, but it is also a disadvantage to bitcoin. And I think the author of those deals does not matter, the main thing is that you can get rewards from it.
Like in 23 days "or so" we will have #52
https://lbc.cryptoguru.org/stats
And that's just because we're covering our 4-day "search debt". @BurtW - you hear this?
Rico