MR TAN H C is upset over recent measures to tame the property market. The businessman, 59, feels that they unfairly penalise private home owners like him while HDB flat owners are spared. The reason: The new rules mean Mr Tan now has to sell his condo within six months if he buys an HDB flat. So he cannot own a private home and an HDB flat at the same time. But an HDB flat owner has no such...