Not all heroes wear capes
If the link fails, relevant information: Squatting is not, strictly speaking, illegal in Australia. If the doors are locked and they break it it's breaking and entering, and if the owner asks them to leave and they don't it's trespassing, but if the property looks abandoned, the doors are unlocked, and the owner hasn't shown up to say no, you can move in. And if you manage to stay there for 12 years (or 15 in Victoria), adverse possession, or squatters' rights, kicks in and you can file claim to the house.
Basically, what he's doing is completely legal because squatting laws were specifically put in place to avoid people making empty houses for profit, and rich people are upset and calling him a far-left criminal activist for telling people things they don't want them to know.
We need vacancy taxes. The ideas behind squatter’s rights are all well and good, but in practice they are convoluted, take years (decades!) to resolve, and are divisive politically. Taxing empty properties that are not on the market, being renovated, or available for lease is a better route. Taxes should go up the longer a property is empty, and the timer shouldn’t be reset for stays under 6 months. An empty house is not an investment vehicle. It ought to be someone’s home.
Sure. So what do we do to help homeless folk get a roof over their head tonight?
Vacancy taxes are great! Victoria (where purplepingers lives) has them! And yet, there are still houses sitting vacant and disused in Victoria that could be being used tonight to house someone sleeping rough because they and their family can't afford rent.
If landlords don't want squatters occupying their houses, they can always rent them out! And since vacancy taxes clearly aren't enough get them to rent them out, maybe fear of squatters taking their homes will do it.
Personally, I'd rather we do everything we can. Laws that lead only to suffering should not be obeyed.