All topics welcome. If you’re a geek about something, come share / discuss / debate. Learn, teach, connect. Being passionate is a super power. 
Be respectful : Just use the golden rule - treat others the way you want to be treated.
Concise : Attention is more valuable than anything else. Be brief so others can share. Some things take more time to explain, please allow for exchanges rather than soliloquies. 
Open Tabs: It’s a nonlinear communication club. It’s ok to change topics and moods, just notify if there is a segue (like when you signal changing lanes). E.g. “I’m changing topics” or “I’m adjusting the mood.”