What does each OrgPreferenceSetting do?

Here are those I could find:

• AnalyticsSharingEnable (available in version 40.0 and later)
  • Turn On Enhanced Folder Sharing for Reports and Dashboards (?)
  • Use Your Salesforce Sharing Settings in Wave
• AsyncSaveEnabled (available in version 40.0 and later)
  • Enabling Asynchronous API
• ChatterEnabled
  • Chatter Settings
• EnhancedEmailEnabled
  • Considerations for Setting Up Enhanced Email
• EventLogWaveIntegEnabled
  • Event Monitoring Wave App (GA)
• LoginForensicsEnabled
  • Monitor Login Activity with Login Forensics
• NetworksEnabled (available in version 40.0 and later)
  • Enable Salesforce Communities (?)
• NotesReservedPref01
  • Want to create a scratch org with Notes enabled via project-scratch-def.json
• OfflineDraftsEnabled
  • Enable Offline Access and Edit for the Salesforce App
• PathAssistantsEnabled
  • Sales Path: Help Reps Follow Your Company’s Sales Processes in Lightning Experience
• S1DesktopEnabled
  • Install and Customize Salesforce Desktop
• S1EncryptedStoragePref2
  • Create DX scratch org with caching disabled
• S1OfflinePref
  • Enable Offline Access and Edit for the Salesforce App
• ScratchOrgManagementPref (available in version 41.0 and later)
  • Enable Dev Hub in Your Org (?)
• SendThroughGmailPref
  • Send Email from Salesforce with Gmail™ or Office 365™
• SocialProfilesEnable
  • Set Up Social Accounts, Contacts, and Leads
• Translation (available in version 40.0 and later)
  • Support Users in Multiple Languages
• VoiceEnabled
  • Enable Lightning Dialer (?)

An up-to date way of matching the OrgPreferenceSettings list is using the Settings metadata.

Using heroku/force CLI that would be:

force fetch -t Settings

Now you can search in the different settings metadata files for your org's preferences.

For example:

Accounts.settings contains the enableAccountTeams tag that would be translated IsAccountTeamsEnabled in the scratch-org definition file.

I'd put a bounty on an automatic translation tool if I could.