Yeah, I wouldn't put your crypto wallet into OzBrain or anything... this is more the day to day operation of your business or personal life. While that is also valuable, our data is already sitting on a lot of servers so might as well make it useful for you and your agents.
What's stopping you from putting your md files for agents right into your git repo along with the rest of your project files?
I would like to have more of a global memory for personal assistant type of agents. Auto updated and maintained. Browsable.