It's a stay on evictions, not a no rent mandate. The tenant still owes the amount in deficit; you just can't throw him out if he is unable (not unwilling) to pay. To be protected they have to be able to prove poverty, not just plead it.
Getting or Collecting on a judgement in my state is not an easy task. Basically it is a waist of time to even try. They hoops that have been put in place always protect the debtor. If they don’t have to pay now then they never will. That is just the way it is.
How about the government pays the rent then they try and collect on it. They will never do that because they know that they would loose there shirt. Even with all of their resources to collect. The idea that landlords can later collect is nothing more than another political talking point designed to appease the ignorant. Like all socialist talking points it obviously works well for a gullible populace.
California just canceled rent due in many cases. And NY is trying to do the same. That is what happens when people sit back and let them get away with one thing then they know they can get away with even more. Just ask the Jews.