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Really, we're confounded. David Hornik's Lobby conference is ostensibly an invite-only affair. But some of the attendees had us scratching our head. Spotted, Yahoo's Bradley Horowitz, Brad Garlinghouse and Kiersten Hollars enjoying some sun instead of participating in Jerry Yang's 100-day turnaround of the company. Then there's Jessica Livingston and Paul Graham from Y Combinator. There's nary a 22-year-old wantrepreneur in sight, so what's the draw of this conference for them? Other inexplicables: Kara Swisher from AllThingsD, and TechCrunch heavyweight Michael Arrington, two notoriously gossipy hacks. Wasn't this event supposed to be off the record? And does Arrington even know what that means? (Photo by bradley23)