When lack of structure fails, it fails all at once. What works totally fine from 0-20 employees, is disastrous at 30.

A small communication breakdown is enough for everyone to be working on slightly different things. And then you loose focus.

Why now, why is this the perfect time for this particular idea, and to start this particular company?

We've seen a lot of data at YC now, and the most successful companies and the ones where the investors do the best... end up giving a lot of stock out to employees- year after year after year.

Some day everyone will find out everyone else's comp, if it's all over the place, it will be a complete meltdown disaster

Obsess about the quality of the product.

Just put a little pin in your mind: when you cross 50 employees, there are a new set of HR rules that you have to comply with.