[pjmlp]

You are forgetting that open source projects don't have deadlines, pissed customers that might go elsewhere, people that get fired by not fulfilling the quarter targets, ...

[rjzzleep]

i'm not so sure that's true. if you fail to deliver in time your open source project will become vaporware and people including developers will go elsewhere for satisfaction

[pjmlp]

Partly true, as usually there are no monetary consequences.

[weland]

That's pretty much not true of any widely-used open source project. They have deadlines and pissed off companies that take their money elsewhere.

[steveklabnik]

They most certainly have pissed customers that might go elsewhere, and they often do have deadlines.