Yes, Trump Derangement Syndrome is real. And you've clearly got it. Here are some quick quotes from the article:
"the Trump Organization received payments for its use, part of more than $1.2 million that has no documented recipients past the Trump Organization. Golf charity experts say the listed expenses defy any reasonable cost justification for a one-day golf tournament."
"used the Eric Trump Foundation to funnel $100,000 in donations into revenue for the Trump Organization. And while donors to the Eric Trump Foundation were told their money was going to help sick kids, more than $500,000 was re-donated to other charities, many of which were connected to Trump family members or interests, including at least four groups that subsequently paid to hold golf tournaments at Trump courses."
"In 2012, the Eric Trump Foundation wrote a check for $25,000 to the George Rodrigue Foundation of the Arts. That same year, George Rodrigue, who had said that his famous "blue dog" paintings sometimes sold for about $25,000, created a portrait of Donald Trump for the auction at Eric's event. "
But you're right, the *opinion* section of the Forbes article says "it's done a lot of good." THAT part wasn't sourced, and there's no basis for it. But that's what you grabbed on to.