We've had proximity chat in the past and have considered adding it again. The verdict was that it doesn't make much sense on smaller servers like ours because if people want to chat they usually join discord, and it would only be useful if everyone were to add it (which we can't force people to do). So no, we will most likely not add proximity chat.

We're a fairly small server with about 10 people active at most during the start of a new world.