Ms Chan was not ashamed to admit that "my father and mother were not married when i was born." What riled her was that her "legitimate" siblings "kicked me out of the family... and who are going around town saying that i demanded money from my step mother, when i was kicked out."
When father died in 2009, her step-mother, 78, wanted to sell the $20 million bungalow at Lornie Road. That's lots of money to go around for her, her 4 kids, and Chan, the offspring of her husband's mistress. Apparently Chan was not happy about moving out of the outhouse (what's that? a bungalow within a bungalow?) in the family compound and was given 1 million smackeroos on condition that she won't publish anything about the subject matter on the internet or social media. Mainstream media was probably left out because nobody believes the stuff they print anyway.
Nobody really cares about the goings on within gated grounds of the rich and notorious, private citizens are entitled to their privacy, standing members of parliament included. The public interest lies in how the court will rule on whether the undertaking signed by Chan amounts to a total gag order on speaking about the family affairs or whether it was really about airing dirty laundry.