My service is about iOS Games. Its a discovery service.
onion2k mentioned the 'playing with new stuff' part as well. But, I guess you're right, unless I dont somehow communicate with them, I'd never know.
And for communication, your link looks great. Right now, I am using Signals by Hubspot to keep track of emails and user behaviour. It does almost the same thing as well. Will try the tips part as well. Thanks!