Question: should gravestones keep track of user experience too?

[insanj]

Answer: https://github.com/insanj/Player-Graves

[raphydaphy]

I think they should return the experience that you usually get when you recover your items (7 levels or so)

[raphydaphy]

(currently they dont give any and xp is dropped normally)

[insanj]

This is true:

When the player dies, they drop experience orbs worth 7 * current level experience points, up to a maximum of 100 points (enough to reach level 7). All the other experience vanishes.

• via Minecraft Wiki

But, also in vanilla, the gamerule keepInventory persists your experience. Overall, I think a config option could be a good idea. Other mods, such as Death Bags, even have a craftable item to provide the functionality.