I'd like emoticon markers. Short, concise, and
without the team-wide ping broadcast. Local-area things like thumbs up, "sorry", "bad idea", "this is bad" and stuff like that. Also I think they should fade away by themselves within 5-10 seconds. We'd need a widget to summon them efficiently.
Can emoticons already be summoned with obscure escape sequences? Sometimes that would be better than words, for example a "good job" ping without requiring anyone to read anything. You wanna communicate without pushing noise on people.