Huh yeah that's good to hear. As a small note, on my personal bot I set up a simple journaling (and then just used google sheets as the backend!) includes a nominal 'rating' 1-10 so I can see how my mood fluctuates.

Especially if they do it every day/most days, having the option to see what you wrote "on this day" 2-3 years back is great. Especially when I try to include people's names who I was interacting with (but who are easy to forget 3 years later). It can be a nice reminder to text them and say you were "just randomly", unprompted, thinking about them -- 'How's it going?'