This seems really great, I was thinking of doing something like this recently as well, although I was thinking more along lines of:

- I have a set amount of money I wish to give each month (say £200)

- Given I have setup x amount of people I wish to donate to, the system will automatically spread my money evenly amongst the creators, or using a given weighting provided

- I'll be able to add any new creators to this list and not have to recalculate the amount given to each one, given I'm still putting the same amount of money into my "donation pot"

Looking at their current system it seems to still follow the old paradigm of "set up a creator and set the amount for each of them individually", I hope that they could support something more like the above some day. Personally, the mental burden of having to continually reevaluate my monthly spend is probably the biggest burden when considering donating to someone new, which only gets larger as your donation list gets larger, so having the a system offload this I think would be a great way to encourage more donating.