Legitimate question, what does he spend his money on? His multimillion dollar house is probably already paid off and he's not fat enough to be using it all on Uber Eats. I don't think he has friends to go out with to blow it on, so maybe it's going up his nose?
In the past year he's been to Rome, Florence, the Greek islands, Tokyo, London and a luxury resort in Mexico. Those are not cheap places to vacation in, and I doubt he's slumming it - when he was in London, for example, I strongly suspect he stayed at the Ritz because he had afternoon tea there and then dinner there as well, and rooms at the Ritz start at over $1000/night (and we've no reason to suspect he went for the cheapest room). He also eats in expensive restaurants while he's there, and does some of the more expensive tourist activities (sumo lessons in Tokyo, pasta making lessons in Florence). He has taken private jets in the past, although most likely keeps quiet about it now. That adds up.
He also buys clothes all the time. Because he dresses like a clown, a lot of the items he purchases are very distinctive and you can spot them quickly - but it looks like he only wears a lot of them only once or twice. Even if it's not Gucci (remember he wore a Hawaiian shirt to Cocachella that cost over $1k), constantly buying new clothes that cost a few hundred dollars here and there will add up.
He has a personal trainer that comes to his house. He probably has maids to clean the place, probably has a gardener to maintain the landscaping. The expensive puppy he bought probably has a dog walker. He might even have a personal chef. He has an agent and a manager. He seemingly has some production/editing staff on hand (although we know he was exploiting some fans for free labour). It wouldn't surprise me if he had a personal assistant or concierge to handle his life, along with an accountant and a lawyer on retainer. That adds up.
It's quite possible he's spending money on drugs and prostitutes too, but I'm sure he has no issues spending his money. That's probably still not going to eat in all that much to his estimated $200k/month. There's no reason to think Hasan's short on cash - he's just hoarding his wealth.