Sounds good, happy to see you are trying to make this community a better place.
The question I have is : Where will be the Bounty pool comes from?
Let's say if a programmer helped to build specific feature for steemit.com, is it the founder of the community (I assume you are :) ) gonna transfer certain amount of token to the contributor from their own wallet?
Yes, either someone's personal wallet or an individual entity's wallet. The first bounty I posted will be paid by Steemit, Inc
Maybe you guys could also open bounty for the task you are currently working on, and it could have following benefits:
For me personally, I would love to see some basically features have been considered, like supporting upload profile picture and message notifications.
Absolutely, I agree. Hopefully the roadmap post I'm working on will help us get started!