So, being a curmudgeon, "space is big", what does "starship encounter" mean?
Couple of traders jabbering on the CB on the way to/from 100D? A "who dat" blip on the sensors?
Do airliners have "encounters" during routine flight? I mean, besides LGM and collisions around airports. When they're in busy airspace, like around a major airport, yea, it's all encounters. But they're not really facilitating them, traffic control is managing it all. Do airline pilots talk to each other during long haul flights?
Do container ships see much of each other in the deep ocean? "We've been following the "Star of China" for 3 days." Is traffic that dense? Are trade routes that close going east/west and west/east? And, again, if they're just a blip on a RADAR and voice over a radio, is that an encounter?
I guess there can be customs inspections in space, with a patrol cruiser trying to dock and board. But, unless there's an imminent threat to the starport, why not just wait until the ships dock and have agents board there. Why goes through the risks and complexities of deep space docking and boarding.