In Classic Grief (aka 2020 style)

• Disable tp requests /tptoggle
• Disable private messages /msgtoggle
• Brighter chat color (orange)
• Sell more items in /market - 35
• More /sethome points - 40
• More /region claims - 50

In Modern Grief (aka Cetrine)

• Nice bright orange prefix in playerlist and chat
•  Take a peek in your friends inventories
•  Clear your inventory with command
•  Change weather for yourself (visual effect, no impact on gameplay)
•  Get some exp points with command (once per 3 hours)
•  Extinguish yourself (only outside of pvp, once per hour)
•  Change time of day (for yourself, visually)
•  List nearby players (except those under potion of invisibility)
•  Hide specific players from your chat
•  Wear any block as a hat
•  Open crafting table with a command
•  Open enderchest with command (outside of pvp)
•  Set your afk status
•  You can heal yourself (outside of pvp, with a cooldown)
•  You can feed yourself (with a cooldown)
•  Set 40 home points and claim 50 regions
•  Sell up to 40 items on auction
  
  Rank will last 15 days from time of purchase