I think there is potential here, however more detail is required -- a contract of sorts.
Yes, of course there must be an agreement made.
The problem I see with the bot is - how does the bot see if the bounty goal is reached?
A human (well, 2) has to decide. But then a human can also do the payment.
Also my coordinator could put out and pay out small bounties in a flexible way - for example "500 GRC for making a video how to install Gridcoin and set it up"
Yes a human can do that to if there is one or two payments like that, but we need to trust that person that he not run away with the Coins and if there is something like personal problems or Vacation its hard to get the Coins paid out
From my Perspective can the Bot help to "Crowdfund" Projects with a lot of smaller Payments.
And if the System works, it will(hopefully) more used to set Bountys for smaller and biggger Projects where the Community can help.
The part how the bot decide if the Bounty goal is reaced, need some more thoughts.
For the Start will (i think) our main Devs Aprove the Changes and (not yet sure how) trigger the Payout.