The issue in the funny comment below isn't that someone should be spending their money at nice restaurants instead of fast food. I don't care how this person spends their money. And obviously for poor people fast food can provide a very cheap if not exactly healthy price/calorie meal.
It's the sneering at the idea that some people might actually enjoy something this person doesn't. They're idiots! Fools! Suckers! They've been tricked into spending money! Ha ha! They aren't as smart as I AM!!!
The general genre of telling other people how they should enjoy life and spend money and time is one of their more irksome things which has a lot of representation on the internet. I'm not talking about good financial advice, I'm talking about pointlessly criticizing other people for how they choose to spend their time and money.
The bits about tippping and bachelorhood were gravy.