Most of religion is b.s. but hoarding in a sin against humanity. If I had a billion dollars I wouldnt. I would be building houses and just giving them away, free and clear. You cant tell people how to live, but you CAN make it easier for them to find their best path.
The really bad thing about it is we already have enough homes to go around, they just dont because Dragons - I mean hoarders would rather they sit empty than help anyone.
Will giving the homeless free houses solve all their problems? No. But now they at least wont be as much of a drain on social and medical services. I know some of them would just trash the place, but thats a price I would be willing to pay to help the many who would use it as their new start.
I really dont know why Gates or Zuckerberg dont do this. They will be mostly reviled in 150 years. Fix homelessness and you're famous for several thousand years, the next Jesus, statues and monuments to their greatness in every city.
For anyone who wants to cry: But I had to pay for my house... stop being miserly, it is time to admit that that you got there with a lot of help along the way. No one is self made.