This is very far from "everything". There are many startup scams out there right now that would appear legit according to this guide. I've seen startups that de

This is very far from "everything". There are many startup scams out there right now that would appear legit according to this guide. I've seen startups that delay valuation, so that you pay higher prices for stock. Sometimes you are outright asked to actively improve the perceived value of the company so that that more you work, the more money you will end up paying to buy the stock later. It is important to know that startups are legally required to give you strike price no lower than the valuation, but they are actually allowed to give you any price higher than the valuation without disclosing it. There are a ton of subtle ways the founders can screw you over if they want. If they don't have your back 101%, the options are worthless. Anyone with financial background would laugh at what some developers are asked to sign.