“It’s like email. We have our company domain and others have theirs and it all just works”
That’s a great start to an explanation, but first, you are assuming that people know how email works, and second, unlike email, federated social media has discovery, feeds, and in general content that gets pushed to you. How all of that works can be complicated and if you join a small instance, you may not realize how much content you are missing because of it.
In some cases, I think technical explanations aren’t necessary. For some people, the recommendation could be more like
Here are some growing platforms that people are using. I feel that this one is the most viable long term, and so we should maintain a presence there in addition to whatever else we choose.
The marketing department doesn’t need to know how email works in order to set up newsletters
