Tapping communicators to add friends can work, yes! Characters can also manually exchange contact information by typing it in. The network has most non-residents on display, as theirs is a little different from the citizen network (due to not being built in to their physical bodies) but usernames or personal info are not automatically added when a communicator is given to someone, so characters can choose whether or not their name is publicly shared. Contact may show up as "Unknown" or their contact # with no attached name.
You can block other people, but occasional system glitches might cause periodic or unwilling unblocks. This would be determined by the players themselves, so feel free to mess with that as you wish.
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Tapping communicators to add friends can work, yes! Characters can also manually exchange contact information by typing it in. The network has most non-residents on display, as theirs is a little different from the citizen network (due to not being built in to their physical bodies) but usernames or personal info are not automatically added when a communicator is given to someone, so characters can choose whether or not their name is publicly shared. Contact may show up as "Unknown" or their contact # with no attached name.
You can block other people, but occasional system glitches might cause periodic or unwilling unblocks. This would be determined by the players themselves, so feel free to mess with that as you wish.