No, honestly I'm not angry with you taking it, I'm just a bit sour on how you did it.
Asking me would have been the best way.
I'm too busy to run this right now, or take the thread. I would have handed it to you in a heartbeat.
I haven't been on much lately, but if you had sent me a pm before making the thread, I would have seen it.
A simple "hey, I know you came up with this, but you haven't done it yet, so can I?" goes a long way.