I am not DFd but I have not ever applied the advice from the Society on how I treat disfellowshipped ones.
I talk to them when I want. I keep in touch with all my DFd friends and family.
Funny, no one has ever said a word to me about this. Not elders or anyone else.
Rather, some have come up to me and told me they admire my actions.
Im not sure why nothing has ever been said but it wouldnt change anything I am doing anyhow.