What a sick joke: Mayor Zohran Mamdani is burning city cash to stage angry crowds to demand the Rent Guidelines Board — already controlled by his appointees! — make good on his rent-freeze campaign promise. In political circles, “astroturf” is the term for fake “grassroots” activism-for-hire; this is just taxpayer-funded astroturf. The mayor actually boasts of how his Organize NYC will pay professional hacks to recruit people to put on this pointless show as the RGB “considers” whether to