I don't know if this is going to change how they act. Maybe some will.
My last meeting was 9 years ago this 4th of July weekend. Just stopped, cold turkey stopped. No conversation with anyone about why, no fading. One meeting I was there, the next gone. Not DF'd, not disassociated, no 'wrongdoing', no apostate attitudes, just gone.
Over the next couple of years while I still lived in the same small town, I saw a witness occasionally at the grocery store. Every time it was the same thing, eye contact from down the aisle, they would immediately turn around and go the other direction to avoid me.
Walked into a business where a bunch of sisters were sitting together. One of them said OH my he's here and they all got up and immediately left.
If you are not a publisher in good standing or better you should be avoided. Just being in sight of a used to be publisher is enough to be adversely effected by their evil influence unless you are at the KH. Even then the evil used to be publisher must come in at the last minute, sit in the back close to the exit door so they can immediately leave after the closing prayer so they can't spread their evil influence.
So now they can say hi. Nothing else will change in their heads. Ex pubs are the human reincarnation of Satan himself. It's ingrained in the brains. Their Bible trained conscious tells them this.
I can see it already. Say Hi is ok. Say Hi, how are you and you're in the back room getting counseled for excessively communicating.