I have 22 WL contacts on WeChat.
3 retired (2 still in Aus with boyfriends or husband; 1 back in China).
I guess there is no harm on naming the one who retired back home. She is Deer from 278.
I barely ever talked to them.
In fact, I actively talk to only one of them. Once every week.
There is one I send occasional greeting for B-Day and Christmas.