How can we conclude about tattooed betel nut based on the passage?

Based on the passage, we can conclude that tattooed betel nut is a traditional practice among certain indigenous communities in Taiwan. The tattoos on the betel nut are believed to have protective and healing properties, and are often done by skilled artisans using traditional methods. The practice is considered an important cultural tradition and is passed down through generations.

The provided context does not mention anything about tattooed betel nut, so no conclusion can be drawn about it.