Community TypesLayered ModelImplications of the ModelTransparency and PrivacySynchronization of InterestPrivate Motivations, Transparent CommunityNo ExclusivityGaming the SystemOpen Source Business Models: Open Core Is Bad for YouA Game on Software FreedomHiding the Problem in Plain SightOpen Core Harms Software UsersCopyright Accumulation?ScarcityParticipation AgreementsWhose Freedom?Conclusion: Trade Control for Influence