[jessaustin]

...if we were about to pay, we couldn't justify our out-of-scope decisions for anyone else.

What, are we in kindergarten? Does Prezi not have managers entrusted with taking decisions? They can run their bounty program however they want.

That they choose to run it in this fashion sends several messages in addition to the obvious, "we are obnoxious miserly prats". While hackers in white hats might be hearing "concentrate your efforts elsewhere", those in black hear exactly the opposite message. Many people who might previously have admired Prezi for their innovation and paid them money for their services, have now heard a reason to find other means to create presentations. Potential acquirers and potential hires have heard that this company's management finds running a bounty program challenging.

EDIT: Maybe I'm being too harsh. Apparently this is a largely Hungarian company; it's possible there are cultural misunderstandings in play. From a (perhaps cliched?) American perspective, however, following the rules is less important than accomplishing the goals of the program.