I've left Deliverybot pretty much on it's own for the past few weeks as far as marketing pushes. The nice thing is that it steadily receives a trickle of signups (about 5 per day average) just from previous marketing pushes and the GitHub marketplace.
Now I'm just waiting to be officially approved by GitHub for their marketplace. I don't know how long this will take but this is currently blocking me from actually accepting money!
So far the most encouraging part is every day I wake up to a new suggestion or idea from someone and have a nice chat via intercom with a real person. It's incredibly motivating to have real people talk with you everyday, ask questions and offer feedback.