Suggestion #7918

For example, a 9x9 core can hold 5 3x3 (chunk) grinders within it. In addition, using walls to divide up spawners within a grinder should not be allowed. Many factions use the fact that there are no rules to their advantage to create >10 spawner boxes with 8-10 spawners inside to avoid losing their value (which takes 45mins - 1hour to breach per box). They also section off their spawners to limit losing that grinder's full value which makes it harder to raid + it barely affects f top standings.
You basically lose more in tnt cost than you gain from a raid...