@OT, Didn't someone point that simply returning true has broader impact that just removing the fee?
OK, never mind. I fixed this myself in all branches.
AllowFree() returns correct values now.
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Ah, one more thing.
IIRC, fee is the only known mechanism to protect against the "penny flooding" attack.
Incorrect.
I just looked at the code and it seems that it only protects against people who don't know programming well enough to change it themselves. And hackers & bad guys usually do, or simply pay somebody who knows.
Basically by changing one line of code in the client, you can do whatever you want (and send whatever transactions you want).
So i don't really understand what was the point of forcing everybody to pay the miners additional fees if it wasn't necessary.
Mining cartel of whatever ?