Some form of chatting at least?
Now I know that the Chat is a future feature, as it is probably hard to make and time-consuming but when will we have at least a way to leave a message to someone, to say something, like "I truly love your art piece yey, etc. etc." and to get a conversation going, get to know the community, get to know the people, have a better community of people who will gladly click on CAS on their tabs every day, eager to see new stuff like arts, messages and so on. An art community doesn't only consist of art, for me that is.. there must be some kind of connection between people. And, apparently, the Google Hangoutses haven't been good enough as only a handful of people entered them...