How about we stop suggesting a messaging app that styles itself as privacy-oriented and encrypted despite not being end to end encrypted by default, and using questionable encryption even for the optional E2E functionality that nobody uses?
Other forms of advertising don't make my office phone ring while I'm in the middle of something, or make my home phone ring while I'm eating dinner to ambush me. Cold calling makes e-mail spammers look polite by comparison.
Also, despite the fact that I despise and block everything the internet ad industry throws at me, that industry arguably provides something in return for the trouble of putting up with their bullshit. Cold calling provides me with absolutely nothing beyond a rude interruption of my day at best.
I don't care what you're offering, because I subconsciously tag anything associated with cold calling as a scam and file it in the same mental folder as that "free cruise" I "won".
Cold calling me is a guaranteed way to prevent yourself from ever getting my business, and I know I'm not alone in that. My subconscious automatically tags companies that cold call as scams.