This one does so too, just less explicitly. It ends with "don't be a jerk", and the rest of it contains examples of things that would make you a jerk, but there's nothing that says those are the only ways to be a jerk.
My IANAL interpretation is that the "don't be a jerk" is not intended to be a clause of the contract.
A few things point to this interpretation.
* All other clauses clauses start with >
* It is followed by "enjoy your free software", which is clearly not intended to be mandatory
* Your interpretation is contradicted by the two instances of "You don't have to, but not doing so would make you a jerk." Those instances are examples of thing that do make you a jerk but are nevertheless allowed.
