Gripe. In real-time group discussions -- Skype, Slack, HipChat, etc -- the interleaving of messages from the multiple participants will cause confusion when many questions are open and answers are given without context. Which answer goes with which question? So, when the question is "do we need to do X with Y" then answer "Re X with Y, yes" and not "yes". It takes so little extra time and, really, if you are that short on time then find another job where clear communication is not important.