I know Anet had their reasons for removing them all, except report. But it seems to create a unnecessary hassle when trying to invite people to your group or block people who are creating issues in chat. All options are available in the portrait, even cross server defenders/attackers, which makes it a bit perplexing why it isn’t a option for the chat box.
If nothing else the main one is Block. Reporting a player does not add them to the blocked list. Report is a Long term solution to a situation that often needs to be taken care of immediately. While the player can be added manually, it can be difficult to type a long and complicated name with a chat box that is constantly scrolling new text.