Another way to look at this is that 1 key press = 1 action.
What is frowned upon is 1 key press = more than 1 action.

If it takes you 12 key presses to get 1 action...you really aren't hurting anyone but yourself.

If I hit "1" and ToonA does the /wave emote and ToonB is sent "Shift+1" and does the /rude emote, it's still 1 keypress and 1 action.