If Square wants to change the rules on this housing thing, that's fine, but giving out warnings to people before officially announcing the change is complete BS.
Even if the people who sell housing plots are given a warning right now, it doesn't solve anything. The people who bought plots for the sole purpose of selling them won't suddenly disown them because they can't sell them anymore, they will stay empty until there's a safe way to sell them or they get auto-demolished. Nobody wins here, the people who want a house still won't be able to get a house.
And no before I get accused of being a person to flip houses, I own one personal house and thats fine by me.