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.
Imagine not trying to fight network effects because it’s “kinda cringe”. Of all the reasons not to do it, this screams “I’m insecure” the loudest.
I imagined it and felt more secure in not proselytizing.
“Attention all, I went somewhere else!” OK love that for you.