The idea is not mine, but it is still a good idea. There should be a chat box. Just like a small section, where you can have small talk.
Ex:
Steve: Hey Bob!
Bob: Hi Steve.
Steve: Something hilarious happened to me today.
Bob: What was it?
Steve: My hands got stuck in the bus on my way back from school.
Bob: Hahahahahaha! How did that even happen?
Something just for ordinary chatting. Just simple. With of course, a spam block. And it doesn't count as posting.
The Basic idea of a chat box was from: speakno3vil
The Added detail was from me.