For example, on WhatsApp, use the whole 25 character limit for profile name. Examples:
Bob Moved To Signal.org
Alice MovedTo Signal.org
CharlieMovedTo Signal.org
Say Signal.org, not Signal, because they won’t know it’s an app.
Use your about section too. Same on Discord, Steam, Instagram, etc.
Some use open source alternatives since signal still has the off switch to your communication. I personally use matrix for over a year and its pretty good. But its not polished so you need patience and a good admin.
I’ve started to get much more interested in SimpleX as the database management is much easier and disappearing messages exist and while that is not a privacy function it is a great database management function to automatically have messages removed
i can see how this would be an interesting function. sadly, we’re, nowhere near an end user ready experience in any non corporate messenger. it very much still depends on how tech savvy the user and how good the admin is. until that changes I’m gonna unilaterally say no to reinventing any wheels and say fix the stuff we have before adding more functionality.