It's getting pretty hard to manage for me, the poor maintainer :-). We've always put all our income into paying for development (and hardware, and sprints), so right now on Saturdays I'm being my own secretary/HR person/admin person. It used to be that my Saturdays were for bug triaging...
Be careful of burnout, Krita is wonderful, and I think the community would far prefer a slightly slower pace of dev if it means that the lifestyle is sustainable for you.