Special-purpose pubs:

• Mirrors [%OkwWfFx...]
• Antennas, Bees [%75TLIcL...]
• or not [%31Vpwhq...]

More metaphors for pubs:

• "signal boosters" or "speakers on a pole" [%5nezGz8...]
• "in amateur radio terms, like a repeater" [%b2KGAV5...]
• poste restante mailboxes [%+6F81zB...]
• non-drinking-related [%AvKuW2j...]
• "meeting places for self-organizing communities" [%FAFvsbb...]
• "your first friend" [%RL2oLBD...]