Earlier quoted context omitted.
The risk that the company folds hits the early employees just as hard as it hits the founders. Founders don't typically provide a whole lot of capital. Three guys meet in a room somewhere, hash out an idea, assign themselves CEO, CFO and COO, plunk $1000 on the table each, call each other 'founder', then get some funding and then hire you to implement their vision. Their risk is just about the same as yours, only you…
On the other hand, as engineer #1, I didn't personally guarantee any debits of the founder, nor was I the one the IRS was after for years for not paying payroll tax when money was tight.
Better to fold than to not pay payroll tax, or, alternatively, talk to the tax man and see if you can work out some kind of a deal. Simply not paying is illegal and will get you in seriously hot water.
As an employee you are insulated from that but that's simply bad business and bad management and nobody forces anybody to do such things.