Not entirely sure as I said, I understand where you’re coming from. I’d still rather people use Signal than not at all, but yeah I see the issue here. Maybe try opening an ticket on their forums and you’d get better responses. https://community.signalusers.org/

deleting app does not delete account on any online service. reason why people are still messaging me on whatsapp and i am calling people on Duo and we are all waiting endlessly. some services like Telegram, Whatsapp (I probably didn’t cover it) etc. have a default inactive account cleanup schedule…not sure about Signal.