I personally think that the Devs should take donations same as the teh people that make it possible for them to even have a market for their apps ( JB Dev Teams). Some of these apps are way overpriced considering the amount of people that have a jailbroken iPhone (Million+ and counting), so if some people have the option to either overpay or get it free, guess which one they will choose? These prices would make sense if the JB community was small like it used to be. I for one would NOT pay 3 bucks for Springtomize and I am obviously not the only one. If some of the Devs would charge a reasonable price I am more than sure people would be more inclined to pay the cost. I mean...if everyone paid the prices set by some of these Devs these guys would be millionaires overnight, meanwhile the people that make it possible make nothing..
That I agree with. Some of these minor tweaks are indeed way overpriced. A donation system would be much more preferable (even though, with pirating, it almost already is a donation system since you can get it without paying if you want).
The problem is that it is not currently a donation system. No matter how unfair the price is, it shouldn't mean you can take it without paying for it.
If you want to send a message to the Devs that are over-pricing their apps, simply don't download it at all, and create an awareness of the ridiculous prices by posting about it in forums, blogs, etc. Essentially, boycott them.
But don't steal from them - that will only encourage them to develop ways to prevent it, not to reconsider their pricing. It only reenforces that there is a market for their apps, and they can likely still charge higher prices if they prevent the craked app downloading.
As a side note - While a donation system would be good, the mindset of most of these pirates/thieves does not foster that system. You seem to be interested in what is fair, but most pirates are not. How many pirates out there have actually even thought of attempting to donate to Hackulous, arguably the most "valuable" repo out there money-wise? That's what I thought...