Server rules apply in-game as well.
No griefing
Do not destroy, alter, or mess with other players' builds. If you did not place it, do not break it.
That includes:
- Stealing crops without replanting
- Stealing or killing other players' wild or spawned Pokémon
Chunk claims protect owned land. See Chunk Claiming for how to protect your own base.
Lag machines
Do not build lag machines or excessive redstone clocks that harm server performance. Normal farms and AFK setups are fine.