I think the most important post in that thread, sadly, wasn't cached. It was made by Mike Aubrey, mentor of team 47, Chief Delphi, and forum moderator. Basically it said that the Chief Delphi forums are not only a medium for FIRST teams to discuss and interact, but they also carry not only the team name of FRC 47, but the name of a major corporation (Delphi).
As a result unprofessional conduct, flame wars, and personal attacks are avoided by the wonderful crew of moderators and webmasters. The comments weren't deleted as an act of censorship or to "save face for FIRST", but rather to keep the conduct on this forum clean and within guidelines.
As for the anonymous "double standard", Brandon explained that in
this post. Duplicate accounts are allowed if approved by the Chief Delphi moderating crew first.