Hong Kong authorities have overlooked hundreds of millions of dollars in money owed by big developers for using public space for commercial gain, such as placing dining tables on walkways, according to the government watchdog.In a scathing report, the ombudsman on Tuesday called enforcement by the Lands Department “lax and ineffective”, after it was found that it only recovered money in one out of 65 cases of violation over the past five years.“Our investigation has identified seven areas of…