Yep. Part of making this work would be a way to properly vet participants. There's going to be people and gigantic corporations who game systems all the time, regardless of what it is. And there's nothing on earth that will solve everything on earth. The questions around homelessness, as I see it: Are current systems working? Are the current large scale approaches to homelessness working? What do I mean by "working?" Is "working" just a meal and a bed, or is it systemic change to alleviate the conditions that lead to homelessness to begin with? Are my tax dollars better spent paying for a one-night stay, or investing in programs that treat the whole person/family so they become self-sufficient and ultimately return the favor they received, and more, back to society?
I think moving away from throwing money at temporary fixes that don't drive permanent change into Housing First, or other evidence-based practices, makes sense. I also understand that anecdotal evidence of bad actors holds a lot of sway. I also think it's very cynical (you're not doing this, just saying) to think most people would rather not sustain themselves. There are some, sure, and maybe we end up paying for them, too, but most people have pride and a will to make it on their own.