The main thing that has changed is the unlimited amount of choices anyone has when it comes to interacting with other people. You can go shallow, deep, or anywhere in between. It’s all out there somewhere. And there are so many people with years of experience managing online groups, societies, communities, etc. that the amount of skill and knowledge is very high. Many here have managed, or still manage huge projects. It’s quite a large field now with activity in every part of the world and a ton of products on which one can build. And there are great community management tools that help one sift through large volumes of dialogue without forcing you to stay up all night just reading it all.
And our attention spans seem to get shorter all the time just like the size of the screens.
What hasn’t changed is human nature. People still like to argue, we still are all calibrated to misunderstand each other, nobody much wants to be “managed”, and taking certain actions as a manager will results in the same objections.
And yet when people develop deeper or stronger personal or professional (or both) relationships, because of your platform or community space, the same magic happens.