It seems that Sega really want to finish the PSO2Comi English localization sooner, so they skip a chapter yet again (This time, it's JP chapter 96). Unlike other instances of chapter skipping, I don't find any offending or copyright-related in the skipped chapter in question. Here's the JP chapter: http://pso2.jp/players/community/comic/pso2comi/96/
Update: Apparently, the original EN Chapter 84, titled "Continued: Stealth Marketing", got removed, and because of that, all chapter published after that had their chapter numbers changed. The removed chapter contains an advertisement for a gag manga for PSO2es, something we as the global players never got (and never will).
Also, JP Chapter 96 is now EN Chapter 93.