I noticed that some instances put a registration wall behind their communities. If you are registered in instance A, you can search for a specific community in instance B but cannot see the full list of communities there. Is there a workaround (besides asking someone from B to give a list of the instance)?
I haven’t found it necessary to register to see the list of communities on another instance. I just went to that instance in a browser and clicked on ‘communities’ to see the list.