He was a former child actor who starred in the Home Alone movies. Had a turbulent few years early on as an adult, as many child actors do, but is supposedly doing very well now.

What the other poster is getting at is that he had a lot of income coming in from his acting career, as a child and even still now to an extent, so he would not have felt motivated to lie and sue for a lot of money like some kids’ families might have.