It’s a few things. - positive reputation. Other founders enjoyed their experience. - provide value through their network. This is the foundation YC built them

It’s a few things. - positive reputation. Other founders enjoyed their experience. - provide value through their network. This is the foundation YC built themselves on. Investors that introduce you to paying customers, other founders, other investors, etc. - leave you alone and only help when you ask for it. These are the best types of investors. They provide advice only when you ask. Those are the most important things.