New rule: you don't get to fucking police someone's spending habits if you haven't fucking given them any money.
Nor if you have, for that matter. Fuck off with that moralism. Even having been homeless yourself does not give you the right to tell people how to live, you sanctimonious fucking pricks.
I wish you wouldn't. But I also don't know how to make your life better, and it feels like our whole system is built not to care. I just hate to see you give up instead of finding your way to some degree of happiness (in spite of how arduous a journey that's likely to be).