Is SYNCROOM Plus - ルーム一覧が便利に！ safe?

Adds room-list and member-management features to the SYNCROOM players site.

This extension enhances the SYNCROOM players site with member display, favorites and block management, online notifications, remaining room time, advanced room and member search, tag filtering, and full-room availability notifications. It also supports automatic URL linking, favicon display, announcements, password saving, profile editing, and multilingual display.