The couple cases I know from long ago, that the individuals then were never announced 'on the platform' as "disfellowshipped, disassociated." Though, they were 'off the record' df'd, at least some family members and a few friends felt they could be free to talk with ex-member yet because of no announcement
I sent in a letter of resignation nearly a year ago now and threatened a lawsuit if they announced anything from the platform. They didn’t make an announcement because the local JWs still greet me in public. I walked away just over 5 years ago, and the elders know why.