I think it comes down to people's attitudes really. I think everyone deserves a clean, warm and safe environment for themselves and their families to live in. But when did it become a right to own a house? I believe it's a priveledge.
If people are all of a sudden unable to rent because it's too expensive then I see that as a problem to be fixed, but penalising investors will just make rents go up, so this NG talk isn't going to solve the housing 'crisis' or making life all of a sudden better for renters, it is SOOOO much bigger than that.