The best use of these questions is to get an idea whether your equity might be worth anything. Ask how many customers they have, how fast they're growing, how

The best use of these questions is to get an idea whether your equity might be worth anything. Ask how many customers they have, how fast they're growing, how long does it take to onboard customers, etc. What do they see as an exit (is it a 10M, 100M, 500M a unicorn?). When do they see it happening? If, let's say, you have 0.01% of a Series A that exits at a billion in five years. You'd expect to be diluted by half and there is around a 20% chance of exit that high so roughly ((0.01%billion)/2).20 /5 or about 2k a year in 'expected value'(or why, numerically at least, it's likely not worth it to take a paycut to work at a startup unless you're seeing substantial equity).