As can be expected, founder salaries increase as their company goes on to raise more funding. Raising takes you out of building the business and turns you into

As can be expected, founder salaries increase as their company goes on to raise more funding. Raising takes you out of building the business and turns you into someone who spends all their time talking to investors instead, usually at precisely the time your business needs you to do founder things. By hitching your pay to when you land another round you're incentivizing raising rather than growing the business, and that's probably a bad thing.