Though many think of the Internet as something like a telephone, communicating by that means is more like sending a telegram. So the actors in a “performance collage” gleaned entirely from Web postings must supply all the auxiliary clues to the speaker’s meaning–vocal mannerisms, facial expressions, fluctuations in tempo and emphasis. But while some of the players in this late-night WNEP Theater production treat the anonymous correspondence they deliver as fodder for easy laughs, others–notably Brian Goodman, Rian Jairell, and Alison Mayer–respect their sources. Resisting the lure of self-aggrandizing irony, they emphasize the dignity of the citizens who share their stories online. Through 12/4: Fri-Sat 10:30 PM. Bailiwick Repertory, Bailiwick Arts Center, 1229 W. Belmont, 773-883-1090. $12.