I've only been here a couple days, but I'm working on it!
I noticed the same thing as you.
I think it was Ghandi that said 'Be the change you want to see' so I started making comments on other people's snaps, hoping to start a discussion.
Maybe you could start /t/forum and treat that tribe as a forum similar to /t/lounge, but for different types of discussions.
Yeah, if you really think about it this place is like a clean slate, ready to be whatever community we make it. So far its headed in the right direction and with enough people this place can really be something great. I really like the /t/forum idea, maybe it can be a general location for in-depth discussions about whatever topics we think would be best to chat about, the /t/lounge tribe although a more central location has more to do with welcoming new members and giving them help on how to get started.