Or perhaps they're just a bunch of skinflints who's mouths are bigger than their wallets... :lol:
Actually your right, I have not supported this bounty yet, unless you count me buying Amiga Forever and then in turn Cloanto have supported the Bounty. But any way I have paid up $10 towards the efforts.
Plus also I have supported a number of other bounties (JIT for OS4, Sam For Developers, Send Amizilla to Amiwest, etc) I do what I can and only with bounties that do interest me, look very likely that they are going to achieve their goals and that I feel the developers needs/deservers the money to motivate them a bit.
Personally I wouldn't donate to a "bounty" myself, to me if your going to write something for the Amiga you should just go ahead and do it, there is no excuse for asking folk to donate money for something that may never even come to fruition...
I kind of agree with you, but I think most of these bounties are just extra little rewards to the developers who might of taken on the project regardless of the money any way, but it gives them a nice intensive to keep going and its a way to say thanks to the developers for their efforts.
If someone writes something for the Amiga they can do so and release it for free,
I agree and would only ever donate to project that will release the end product free and open sourced so that other people can either befit from it or continue on the project, like JIT for OS4 might help MorpthOS too.
if they want to make some money from it then via the magic of the web they can try and sell it to those who are willing to pay, bounties to me are just simply something that shouldn't be allowed as at the end of the day writing a piece of code doesn't involve money... 
Most of these bounties are to port software that is already free and open source and so can not be sold, like Timberwolf and besides who expect to pay for a web browser or JIT emulator when these things are free on the other platforms. Also if the developers did charge for it their might be out cry, example what if the Kickstart Replacement Rom had a small fee, people would be calling for it to be made free and may even go as far as piracy and post it on a site for free for other to get, not that expect you to do such a thing:roflmao: