Helsinki's Radical Solution to Homelessness
theguardian.com
theguardian.com
As for the policy, it seems eminently sensible to me (but then I'm a UBI supporter as well). I note that the article doesn't seem to say how people pay rent if they have no income. It does mention housing benefits, so maybe those cover everything.
The HN rules are clear, and you followed them. And the rules even made sense when they were created and the Internet was less dumb than nowadays.