/signed.
Right click should provide two more options:
1. "Blacklist" (prompts a confirmation such as "/blist add <r>" does)
2. "Report" (open the "Contact us" page)
Also, I'd love it if it did provide two more options:
3. "Invite" (to form groups more easily)
4. "Add to friend list" (obvious purpose)
But anyhow, the blacklist feature is the most important of all, for comfort. We won't be able to display, let alone use the /sh channel in cities if this feature doesn't make it in the game client.
