[nemo44x]

And there we go - why DocuSign is a 50b business.

Sounds like OP doesn’t understand the complexity.

[rvnx]

Can you replicate DocuSign if you were given 50B USD ? Well, then you know if it's overvaluated or not :o)

[hamburglar]

What most people posting here don’t realize is that they couldn’t replicate docusign’s 50 billion dollar business with a copy of the source code and a time machine.

[rchaud]

I could replicate Dropbox with rsync with far less than that (h/t to BrandonM).