ummm.... huh?
@neutrinoP@vocalodon.net ニートリノさん常連おめでとー。 Show more
It means that you are a valued regular customer on the service that you are using.
ボーカロイド好きが集うMastodonインスタンス、通称「ボカロ丼（ボカロドン）」です。 ** This server is for "Vocaloid" lovers. If you are not, please select other server. **
@neutrinoP@vocalodon.net ニートリノさん常連おめでとー。
It means that you are a valued regular customer on the service that you are using.