Yeah, I agree with this one. I'd definitely like to see some changes into the new update just like you're suggesting about adding the click-on-name feature and then show everything related to the player, like invite them to the party, sending them friends etc. Although this is not related to the suggestion I'd like to comment it anyway: I think that a command like /profile <username> would be a great feature to add this new update, will be really comfortable to see any player statics at any moment, even if they're offline.
It also would be great if they will add player-profile option to look up the level, rank, first connection, last connection (of course all this according to the privacy of the player - they would be able to disable this option too).
Good suggestion.