Maps that are larger than 1x1 are enchanted, which means you can put them through a grindstone for XP. If you keep doing /maptool, you can get an infinite number (or at least a large number) of maps and thus an infinite amount of XP.

Maybe an option for multiframe maps to not be enchanted?

We can block grindstones for our maps, too.

We can block grindstones for our maps,

That's what i have done. Will be fixed with cartographer table unzoom issues

We can block grindstones for our maps,

That's what i have done. Will be fixed with cartographer table unzoom issues

How can i do it?

We can block grindstones for our maps

By adding a use case for grindstone, crafting and cartographer table. I've done a quick fix on the indev branch, but it's not perfect and need a bit of debugging .