If there was a NG function that only the person who was shot could use and judge without affecting the Acorn Cannon game, I think the internal conflict (mass shooting) would subside. Personally, I think it's fine to just block the mass shooting snipers and enjoy participating in the game, or to enjoy arguing on the thread.

どんぐりキャノンゲームに影響を与えずに撃たれた人だけが判断し活用できるNG機能さえ有れば内紛(乱射)はおさまると思うんだよね
個人的に乱射スナイパーだけをNGして楽しくゲームに参加するのも良し、楽しくスレでレスバするのも良し