LiveJournal’s Moscow-based owner Sup yesterday laid off most of its remaining San Francisco staff in a restructuring that will also involve the departure of VP and GM Matt Berardo after just seven months, we have confirmed. The rejigging means product development and design move to Russia, though servers, admin and legal staff remain in the U.S. The logic is “to more effectively manage costs in light of the global economic downturn“, a spokesperson said. Now LiveJournal’s finance and admin director Stephanie Gravelle and Sup’s CTO Sergei Komarov will jointly head the site. Valleywag says 20 out of 28 staff are going. The number affected is