I found this to be very well stated: Write "thank you" and mean it. Acknowledge the costs in time and money to bring it to you. Tell me what's good

I found this to be very well stated: Write "thank you" and mean it. Acknowledge the costs in time and money to bring it to you. Tell me what's good about it and what you use it for. That's how you create a relationship where I can see you as a person and not a demand request, and where you can see me as a maintainer and not a vending machine. Value my work so that I can value your insights into it.