Then comes account switching, which you manually have to do as it's not natively supported by any of the clients. This is especially a pain.
What I'm looking for as a user is a way to optionally obscure what my base profile name is, since the server name is what people interact with anyways, and to not list mutual servers by default in the profile (or at least, be able to turn it off).
It's not even really for a nefarious purpose, I just like having nice and clean compartments for different areas of interaction. It's predictable and keeps the world a lot smaller in a nice an structured kind of manner.