HENSEKISHIKI is a world that has completely specialized in advertising.  Very little is actually manufactured there, but Hensekishikians travel throughout the galaxy to sell the products and services of other planets.   They take advantage of the rarity of inter-ship communication to make unexpected contact whenever possible.  None would stoop so low as to broadcast a false distress beacon, but it violates no spacer's code to transmit greetings on open channels.  A typical conversation might start with "Hello?  Can anyone hear me?" and proceed to "Thank the Star Maker!  It's been so long since I've spoken to anyone!  The only thing that's kept me sane throughout this long voyage is this great new game called Meditations on Orla.  It starts out with simple pattern matching, but as you level up..."  The heavily-indentured Hensekishikians are mostly pitied rather than disliked, and their efforts are profitable enough to keep the home planet's enterprise a going concern.