There's more in life than getting even more money.
I'm sure they pay themselves well but I don't think they will be sitting on a billion dollars in either cash or shares.
- customers got screwed over
- same with employees
- quality "optimizations"
- financial engineering
- founder's longterm values abondoned for quarterly gains
Not taking VC cash is a more traditional take on things elsewhere.
https://www.nytimes.com/interactive/2019/05/01/magazine/remi...
Not everyone believes life is a game where the goal is to die with the highest score, above all else. Some do, but not everyone.
You're able to control pretty much every aspect within a private company with no shareholders to answer to and no public disclosures. You're free to use the assets of your company to implement your personal values.
Still, if you are happy with the amount of money you have and you have a business you enjoy running, why sell? This is probably their view of it.
Also this is where Sun acquired NetBeans way back in 99.