From Exploit Attack Detection till to the fix in less than 3 hours. That is really good.
I bet you just made the Attacker upset. He/she/it sure has hoped to gather more coins.

Well, I'm still getting more coins. All network should be updated, it isn't enough to just commit a fix.
Money is not my motivation anyway. Probably will donate this to some open source project.
Keep it. I agree with Illodin. Your attack helped to fix an improtant weakness. So we can consider this a deserved bounty.