Why is a razor taboo to an osu?

In the context of the osu! community, the term "osu" typically refers to players of the rhythm game "osu!" A razor may be considered taboo due to its association with self-harm, which can be a sensitive topic for many. The community often promotes positive mental health and well-being, so items that symbolize harm or distress are generally discouraged. This helps create a supportive environment for all players.