From Craig's Wikipedia article [0]. He sure cares about fighting scams. Craigslist != Craig I know, but may these are intractable problems, not that there's necessarily negligence

> In 2022, Newmark committed $50 million to the Cyber Civil Defense initiative.[39] As of April 2022, approximately $30 million of this commitment had been awarded.[40]

> In 2023, Craig Newmark Philanthropies announced it would double its donations from $50 million to $100 million for fighting cyber threats.[41]

> In 2026, Newmark founded a public service campaign, "Take9", encouraging users to pause and think before responding to a text or email to help avoid being scammed.[42][43] A video for the campaign featured Newmark teaming up with Count von Count from Sesame Street.[42][43]

[0] https://en.wikipedia.org/wiki/Craig_Newmark